Suffolk Argus 21, Oct 2000

Suffolk Branch Contacts

Chairman

Rob Parker, 66 Cornfield Road, Bury St. Edmunds, Suffolk IP33 3BN (01284 705476) Membership Secretary Paul Gilson, 18 Cheltenham Avenue, Ipswich, Suffolk IP! 4LN (01473 253276) Newsletter Editors (temporary) Paul Gilson (address as above}

Richard Stewart, 'Valczina', 112 Westerfield Road, Ipswich, Suffolk !PI 2XW (01473 216518) Publicity Officer (Vacant) Programme Secretary

Alan Johnson, 28 Medway Road, Ipswich,

Volunteers Needed If you feel you could help out now and then with the growing work of the Branch, please contact Paul Gilson on

01473253276.

Suffolk IP3 0QH (01473 715701) County Recorder (Butterflies) Richard Stewart, (address as above) Conservation Officers (Butterflies) RichardStewart, Ease Suffolk (address as above) Rob Parker, Central/West Suffolk (addressas above) Conservation Officer (Moths) Tony Prichard,3 Powling Road, Ipswich, Suffolk, IP3 9JR (01473 270047) County Recorders (Moths)

Jon Nicholls, 18 Berners Road, Felixstowe, Suffolk !Pll

7LF (01394 271500)

Tony Prichard(address as above} Secretary

Tony Prichard, (address as above} Treasurer

GrahamBull, Willow Cottage, I The Street, Raydon, Suffolk IP7 5LP (01473 310371)

Published by the Suffolk Branch of Butterfly Conservation (The British Butterfly Conservation Society Ltd.) Reg. No. 2206468 Reg. Charity No. 254937 Head Offia:: P.O. Box 222. Dedham, EssexCO?6EY. Td. (01206) 322342 Edited by Pa11/Gilsond- RichardStewart L>go (Silv.r-studdcd Blue) Dou1 Hammmky Designed andprodua:d by Suphm Ion, Cat d-Moutt d,sip © 2000 all rights reserved

Committee Members BerylJohnson, 28 Medway Road, Ipswich, Suffolk IP3 0QH (01473 715701)

Stella Wolfe

October 2000 • • • • • • • • • • • •

Brimstone by BerylJohnson

President

Howard Mendel, clo The Natural History

The Newsletter of the Suffolk Branch of Butterfly Conservation

Museum, Cromwell Road, London, SW7 5BO (0171 938 8782) BUTTERFLY CONSERVATION

Volume21

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The Suffolk Argus

October 2000

Contents Editorial ...............................................................................

3

Newsletter Details

Copy Dates Contributions for our newsletter should reach the Editor (address on back page) no later than: February

Brimstones and Buckthorn: 2000 Update ...................... 4-5 Programme 2001 .................................................................

5

Butterflies at Ipswich Golf Club .......................................... 6 Chalkhill Blues on the Devil's Dyke ................................... 7

2000 Field Trips ............................................................

8-16

Cleopatras and Swallowtails ...............................................

17

So what now, fellow butterfly watchers? ............................ 1 8 Re-introductions ..........................................................

June October

19-20

Review of two butterfly videos ..................................... 21-22 National Members Day and AGM .................................... 22 Newsletter Details & General Information ....................... 23 Suffolk Branch Contacts ........................................ Back Cover

To Advertisein

Christmas Eve April Fools Day August Bank Holiday

Any piece of writing that is considered to be of interest will be published together with line drawings/prints/photographs.

The Suffolk Argus is your magazine, so please let us hear from you.

n.Suffolk Argus Please contact:

Paul Gilson (01473 253276)

Butterfly HOTELS

ButterflyLine 09068 884505 T" ..

~ Regular Updates & Latest News All profits are used for the conservation of butterflies and their habitats.

Calls charged at 60p per minute at all times

2

A purposebuilt Hotel with all the facilities that todaystravellersrequire yet in a rustictraditional environment that is welcomingand comfortable.

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01284 760884 23

The Suffolk Argus

sequence is not the case for all species but there is, with some, extra courtship footage.

Considering all of it was filmed outside, and at extremely close range, the focus factor is very good. It certainly gave me a new insight into the varied beaury of butterfly life in close-up, including several very close studies of wing scales. Grumbles include the order of species, which is roughly seasonal but not so definite in the last section. I would also have liked both male and female adults in all species, especially where they are different.

The main difference between the two is that the second has literally no sound in the form of commentary and no accompanying music, other than a brief snatch to accompany the 'Flight of Fancy' in slow motion which ends the tape. To compensate the sequence is fully outlined on the back of the cassette box and I found this easy to follow, though not necessarily for a beginner. Two other favourable sequnces involved 'metamorphosis' and each features a long study of the process.

Both also, unlike several recent advertised butterfly videos, give the video length and to me the first is worth purchasing for its comprehensive coverage and would suit a newcomer. The second is more specialised but equally relevant.

The Beautiful Butterflies of the British Isles' Length: 58 minutes Price: £12 plus £1.50 p&p.

From: R. M. Goodhand, 4, Courteny Close, Wareham, Dorset BH20 4ED.

British Butterflies - 'A Closer Look' Length: 72 minutes Price: £ 15 including p&p From: Kelvin Reel, Crestel, Cooling Street, Cliffe, Rochester, Kent ME3 7UB.

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October 2000

National

Editorial

Men1bers

by Richard Stewart

Day&AGM Regional Action Plans The National MembersDay and AGM are to be held on Saturday24"' Feb 2001 at the GreatHall ExeterUniversityin Devon.

There are threeconfirmed speakers; Dr JeremyThomas - the renowned Large Blue expert,Dr Jim Asherwho has pioneered the MillenniumAtlas for butterfliesand MartinWarren- BC's ConservationOfficer who hasan in-depthknowledgeof Devon's rarefritillaries.

At the AGM, which will be open from 10 am - 5 pm, there will be the normal variery of stalls with booksellers and wildlife societies amongst them.

The Devon Branch of Butterfly Conservation is planning the AGM to be part of a more major event. Following the AGM, and also at the Great Hall, Exeter; we are holding a wildlife barn dance between 8 and 11:30 pm. A lively band has been booked, a bar is available and the price of the ticket £12.50 also includes a varied buffet suitable for all culinary tastes. In addition we are planning a boat cruise of the Exe Estuary on Sunday 25'h February at approximately 10:30 am to see Avocets and other waders and wildfowl. Tickets for this will be £5 for the guided 2½ hour trip. A bar and refreshments will be available on the boat, which has an enclosed and heated area.

If you are interested in any of the ticketed events could you please contact Mr Ken Tyson on O1363 772261 or at 19 Okefield Rd, Crediton, EXl 7 2DL.

The BC Regional Action Plan for the Anglia Region has now been published. Our Suffolk contribution was compiled by James Mann and Tony Prichard. This was issued in 1999 and has now been incorporated into the Regional Plan, with those from two other BC Branches, Norfolk and Cambs/Essex. Tony and I had a number of telephone conversations with Jenny Joy, who masterminded the final document and our Chairman, Rob Parker, was present at the official House of Commons launch on 26'h. June 2000. The 154 page document gives detailed accounts and Action Plans for a wide range of moths and butterflies, with emphasis on 34 high prioriry moths and 6 butterflies. I shall be attending a weekend BC national seminar on implementing these plans, in September at Winchester, and they will be discussed at our next Committee meeting. The 20 copies our Branch is allocated willgo to Committee members and organisations we work with, but other copies are available, price £15, from the Conservation Office in Dorset.

BC Dedham Office As those who heard David Bridges talking at our Spring AGM will know, the Dedham Office will cease to exist at the end of this year and a new one will be created in Dorset.

This making logistical sense but we in Suffolk will sadly miss our 'local' office, set up originally by Andrew Phillips about a decade ago. The team at Dedham has been a wonderful asset for BC and I have always found them extremely helpful and willing to

give me details of anything I want: if they don't know you usually get a call back within a few minutes. Graham Bull, and his wife, have been particularly useful in liaising with the Dedham office and we shall particularly miss being able to easily book, pick up and return the visual display unit. Deborah and Karen have been our main contacts and both were unable to agree to relocation, so they will not be part of the new team. Thankyou ladies-and the occasional man-for being such wonderful ambassadors for Bunerfly Conservation and we send our good wishes in the future.

Committee changes Those particularly observant will notice the absence of Richard Champion from our Committee. He has now resigned and this is a sad loss, as he was recently appointed ro be the Conservation Officer for BC in his part of Suffolk. His contribution in the last few years has been considerable, particularly recording in some of the less visited areas around his base at Aspal Close, Mildenhall. Some members will have particularly vivid memories of all those White Admirals in the sunlit clearings of Mildenhall Wood earlier this year. We hope Richard will carry on his detailed recording and possibly feel he can return to the Committee at some future date.

Articles for the Suffolk Argus If any members have articles for future editions of the Suffolk Argus could they please send them to Paul Gilson at 18 Cheltenham Avenue, Ipswich IP1 4LN: Myself and Richard Stewart will be overseeing the production of the newsletter until a new Editor is found.

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October 2000

The Suffolk Argus

Brin1stones

& Buckthorn:

2000 Update byJulian Dowding Greetings &om Ipswich. We have now finished our second season of planting Buckthorn for Brimstones. A combined 2year total of around 2000 bushes have been planted on about 200 sites, generally across the East of Suffolk. Whilst these plantings are mainly in gardens, a few farms and wildlife reserves have also planted Buckthorn as part of the initiative.

Last Summer, we contacted all 120 registered addresses to get feedback relating to the first 1000 bushes planted. Of these, 2/3 of our questionnaires were completed and returned to us. These form the basis of our survey. Thank-you to all those people who kindly returned questionnaires. The initial results were as follows:-

Results of 1998/99 Survey • Of801 bushes surveyed. 700 (87.5%), were either flourishing or growing reasonably well. The remainder of those surveyed (101 bushes), were either dead or growing poorly.

4

• Brimstones laid eggs on bushes at Semer, in the west of our target area. Eggs and larvae were photographed and also verified by Suffolk Branch of Butterfly Conservation. A robin ate most, but not all of the larvae.

• Brimstones were recorded in 5 other target gardens. 4 others were seen in the general area, one of these very early in the year, the others in Spring and Summer.

Of these 9 butterflies, only one was positively identified as a female. This was in a Stowmarket garden.

• Two further larvae were noted as being potential Brimstones. Both were green with a white lateral stripe and were found eating Buckthorn. One of these, at Heatherhayes, Ipswich, was very close to where an adult Brimstone was seen nectaring on sweet pea blossom in the Belstead Road area. This larvae was deemed improbable because it was too bright a green. The other, at Blaxall, disappeared before a second opinion could be given. Although these larvae were not positively identified, it is known that there are other caterpillars which eat Buckthorn. They also eat other plants and are termed 'polyphagous', ie, eat more than one foodplant. Brimstones eat only Buckthorn.

• From your replies, we learned of a few other creatures that eat Buckthorn.

These were, the Speckled Bush-Cricket, Leafcutter Bees (they don't actually eat it but cut perfect discs from the leaves for their nests), and deer. There are probably many others. The Holly Blue and Green Hairstreak are two other butterflies known to lay eggs on Buckthorn.

Review of two Butterfly videos

Small Skipper by DouglasHammersley A few years ago I was constantly grumbling about the lack of butterfly videos and wondering just how long it would be before someone produced one covering our British species. The situation is now much improved with, to my knowledge, seven commercially available. Three of these cover British species. The two under review complement each other in their purpose and approach and, if you can afford it, are both worth purchasing.

The first is The Beautiful Butterflies of the British Isles' filmed by Rodney M. Goodhand and produced by RMG Wildlife Videos. This covers 58 species, including

the Large Blue, and is divided into different habitats. With very few exceptions there is no attempt to discuss identification points though where appropriate several similar species follow each other i.e. Lulworth, Essex and Small Skipper. I did feel sometimes that a few words would help for example, early on, there is a shot of both male and female Brimstones, with no reference to colour differences. Each species is treated to a range of camera angles and some close-ups. The focus is on the adult butterfly and the commentary is helpful, though occasionally suspect, as in the stated distribution of the Brown Argus and Silverstudded Blue. The words 'usually' and 'probably' would have helped to improve some categorical statements that are open to question. The filming is particularly good and in focus - of many I enjoyed, the Chequered Skipper sequence is particularly memorable. A bonus is the inclusion of other wildlife scenes, such as a young fawn and fox cubs at play. As a portrayal of the varied beauty of our native butterflies it is excellent. My only major grumble, which is a matter of personal taste, concerns the accompanying music. It was ofi:en extremely repetitive and just not my 'scene'. In fact the odd sequence without it e.g. the Black Hairstreak section, was to me a blessing and ofi:en the well-recorded natural sounds were drowned in the process. You could always, if you know your species, tty it without the volume!

The second was on show at the recent AGM and such was the respnse that it has now gone on sale. 'British Butterflies - A Closer Look' made and produced by Kelvin Reel covers 57 species and the emphasis here is no just on the adult stages but also the full life cycle. To take just one species as an example, the Silver Washed Fritillary features the adult, V alezina female, ovipositing, egg, larva and pupa. This full

21

The Suffolk Argus

6. Such experiences leave us ready to consider a flexible, optimistic approach to individual cases, despite our inherent resistance to "unnatural practice", and the problems that releases cause for recording. Turning to the 3 "exam questions" you posed: Responding to Enquiries. When enquiries are received about intended releases, we advise on the present ground rules (ie the BC Code}, explain why the practice is unlikely to be successful, and then seek to discourage the release, hopefully without losing contact with the enquiry. In the case of serious enquiries from SWf, RSPB etc, we would refer to BC Conservation Office to add weight to the Branch view.

Recording. Known, or suspected, releases are not accepted as County records, but are mentioned incidentally in accounts, if only to acknowledge that the insect was seen, and to anribute release as a more likely cause than natural colonisation.

The recording panel investigates unusual moth records, and often rejects them, but is mindful that the real impact on County records of a few unexplained sightings is not great.

Differences of Opinion. We find we have a good consensus of approval for re-introductions which meet the criteria of the code, and are licensed. The main differences within the Committee relate to how forcefully we should act against those who disregard the code. We accept that the County Recorders deserve a louder voice than others, since they have to live with the consequences of over-enthusiastic liberations. The whole process of airing the topic in comminee has been useful.

20

Occober2000

7. These thoughts are a Committee view from the Suffolk Branch, drafted by the Chairman and incorporating input from all members.

Rob Parker Chairman, Suffolk BC

ANNEXA Comments on BC Policy and Code of Practice.

Terminology. The term "re-establishment" is perhaps technically better than "reintroduction" at describing the process we are discussing, but having defined it Uune 1995 Terminology), the Explanatory Notes do not use it consistently: In the title, it becomes the code on "Restoration".

In iii}, "introduction" is used.

In xii), failed "introductions" are referred to.

Also "the butterfly" is cited, and "the species" would be better, catering for moths too. If the code is to be re-written, consideration should be given to using reestablishment in preference to reintroduction, and all the terms used should be defined.

Creed. It can be argued that anyone joining Bunerfly Conservation should be enrolled on the understanding that they undertake to abide by the BC Code of Practice. Such an undertaking would encourage individuals to behave responsibly, and might be worth considering as a long-term objective.

• Of the bushes that died, we know some of the causes of death. Some were accidentally 'strimmed' {this happened on at least 3 sites), others suffered neglect. A few simply died.

• Of the bushes growing poorly, similar sons of fate befell these. Some bushes were simply struggling, even when their companions were doing well. Other bushes had been neglected or were fighting for survival amongst tall vegetation such as stinging nettles and long grass. A few, which had been growing on poor sandy soils, had been improperly mulched (if at all}, and were barely surviving.

Conclusions Things are looking good overall. Plenty of Buckthorn bushes have been planted and these are generally growing very well. Last year's successful egg-laying at Semer was unexpected because the bushes were shorter than the ideal height of 4 feet. It was also a real joy to behold at such an early stage of the initiative and serves to remind us all of the potential to make a real difference to biodiversity in our own small area. It is important that now we have considerable numbers planted, they are grown to their full potential. As we move into Spring all bushes should be pruned, weeded and mulched, ready for their new period of growth. Now it therefore a good time to remind everybody of Buckthorn maintenance and aftercare.

Program.m.e 2001

by Alan Johnson Some members have enquired about a Branch visit to the 'Large Blue Site' in Devon. As advised by Devon Branch the situation is that decisions about whether and where visits take place will be made later this year. Information will be published in 'Butterfly Conservation News', together with how applications should be made. My understanding is that bookings will need to be made individually and not as a group.

Any members who have suggestions for field trips for next year's programme please contact me -Alan Johnson on 01473 715701 as soon as possible after receipt of this edition of the 'Suffolk Argus'.

Suffolk Show 2000 Competition

Winner

Winner of the childrens' word search was Louise Palmer, of Ipswich, aged 10. She was sent a copy of the 'Lomond Guide to Butterflies' as a prize. Well done Louise.

Suffolk Branch of BC Website For those of you interested in looking at our website it can be found at the following address: www.irene.org.uk/butterflies/sbc.htm

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The Suffolk Argus

Butterflies at Ipswich Golf Club

by Neil Sherman, Conservation Officer for Ipswich Golf Club Ipswich Golf Club, a privately owned 27 hole course to the east oflpswich, may not immediately strike you as a haven for butterflies. Images of manicured turf and bunkers full of clean, white sand, so typical of the American courses seen on television may fill your mind. Yes, to an extent these exist, but take yourself away from the playing service to the land either side of the fairways - the rough. Over two thirds of this 250 acre site is thus designated, and is managed in a sympathetic way for all wildlife, including butterflies. 27 species have been recorded here (so far!).

The main habitat present is heathland, with its mosaic of heather, acid grassland and gorse. Species found here include the Silver-scudded Blue, a small colony of which can be found on the I 7'hfairway, right next door to Purdis Heath SSS! which has a very strong population.

Also found here are numerous Green Hairscreaks fluttering round the Gorse and Broom. Larvae can be found feeding on the young growth. Other heathland species include Grayling, Small Heath and the very common Small Copper. Some open areas of the heath have unfortunately been taken over by scrub oak trees, but a glance into the canopy in July and August should reveal the Purple Hairscreak,

6

October2000

which is very numerous here. One tree near the clubhouse was covered in them a few years ago: numbers have dropped back now.

Finding the butterflies at ground level is not unusual here: they are often knocked from the trees by the sprinkler system, or seen flying round lower branches in the afternoons. Last year (I 999) I found one on the ground on the 22 nd June, the earliest Suffolk record to dace.

Two species have colonised the site in recent years: the Brown Argus, which can be found in open grassy areas where Storksbill is present, and the Speckled Wood, which can now be found in most of the woodland areas on the site after the first records in 1998. The Brimstone is a very rare visitor here: in the 8 years I have been associated with the site I have only ever seen 3. Steps have been taken to rectify this by planting 50 buckthorn bushes under the 'Buckchorn for Brimstones' scheme. All plants have survived well, but no Brimstones have found them yet!

So you can see golf courses can be valuable wildlife habitats if managed appropriately. Hopefully we are setting an example to other clubs that golf and the environment can work in harmony for the good of all wildlife as well as butterflies.

by RobParker The Role of Species Re-introductions (Thoughts from the Suffolk Branch) 1. We believe in having a National/HQ Butterfly Conservation policy for reintroductions, and are generally happy with che present code, although a few minor observations are offered at Annex A. We wish HQ to play a role in advising other organisations on (or against) re-introductions in specific situations. We are ready to do likewise within Suffolk, following the same policy line.

2. We want to see increased butterfly diversiry in Suffolk, as well as greater numbers of the existing resident species.

We are presently monitoring the results of the Silver-studded blue "link-up" colony re-established at Aldringham Walks, but are not actively pursuing any fresh re-introduction programmes, though we are keen to strengthen populations and restore historic distribution patterns if the right circumstances can be found. We are in favour of habitat modification to encourage natural re-colonisation of "lost" species, but oppose attempts to introduce species which have never been recorded from the County.

Green Hairstreak

by DouglasHammersley

3. We would support properly planned reintroductions that meet reasonable criteria ofhaving a fair prospect of success,whether implemented by the Branch or by some other conservation organisation, provided that a licencewas obtained following due consultation with BC Conservation Office.

We unequivocallyoppose unlicenced releasesin circumstances that do not meet the guidelines.

Re-introductions

~-

4. We do not support the liberation of captive-bred stock by individuals attempting to strengthen a local population, but would prefer to know about such attempts, rather than to find that such individuals were making clandestine releases. We discourage such releases, but do not often get notification of advance intent.

5. This Branch has had recent experienceof A pre-planned release by another Wildlife organisation, made after consultation with us. In this case, Silver-scudded blues were established for a season or two at least, and we hope they will succeed, despite our earlier scepticism.Random sightings of non-resident species, such as Swallowtail and Marbled white, were probably the result of releases.As for the unexpected appearance, and probable breeding of Queen of Spain fritillaries at _.-= • - ~ _ Minsmere, we hope ,- • • • / ·• their arrival was natural, and will be ~ •' , •.; overjoyed if they 1 ~ 11''.,/ • • become properly ~ .~• established.

~J~

I

/".'. ,.,,, /i ~,:."'• • \\\

'\"-,_ • • • • • • • • • • •

\. "' Silver-studded Blue

by BerylJohnson

19

The Suffolk Argus

So what now, fellow butterfly watchers?

by RobParker Five years' determined recording for the Millennium Atlas by some 700 butterflywatchers has left some of us exhausted, and deserving a break from "square-bashing", and yet our thoughts soon turned to the subject of how we could best enjoy the forthcoming season.

Those with residual enthusiasm turned up at the Ipswich Museum on 15 April to hear the County Recorder's proposals, and to discuss with one another the endeavours most likely to produce satisfying results.

On the drive back, I formulated my own strategy, reflecting that we had heard some good ideas, and that, as there was no "three line whip" for this year, we were free to develop our individual ideas, tailored to personal interests. This year, I will watch butterflies in counties other than Suffolk without a guilty feeling of time-wasting. I might even take a holiday during the summer months! On the other hand, I really do want to use the opportunity to spend time in one place to watch details of butterfly behaviour, habitat preference and abundance. I will run a regular transect walk on the nearby nature reserve, where I can particularly watch out to see if the Brimstones are taking an interest in the

18

October 2000

Alder buckthorn planted there last year.

This will make a change from hopping from tetrad to tetrad, and should prove more relaxing.

On dud days, I will sort out how many local churchyards I might be able to cover for Richard's 2001 survey. There are 2 excellent cemetries with substantial longgrass areas right in the middle of Bury St Edmunds, and one in Horringer which I covered superficially last year. If everyone did the same, we would start 2001 with the beginnings of a plan.

Although there is no National BC recording objective for the immediate future, the 3 priority species for the Suffolk Action Plan (Silver-studded blue, Whiteletter Hairstreak, and Dingy Skipper) surely deserve special attention. We can look for them in former haunts, check the strength of the populations at the known sites, and judge the habitat quality against the ideals in the Biodiversity Action Plans. I can do all this for Dingy Skippers, and although there are precious few White-letter Hairstreaks nc.ar Bury, it might be worth a few days' effort in July to look over the good Elm hedges just west of here.Last year, I missed the Silver-studded Blue count because my car packed up in July, so that gives me an extra incentive to see them this year.

And yes, now I come to think of it, I am sure I found suitable habitat for Green Hairstreaks on cold days, and Purple Hairstreaks on cloudy days, so re-visits on warm days are certainly on the agenda. Any day now, in fact!

Clearly, 2000 is not going to be a totally idle season, but it could still be relaxing, and gratifying too, if forward planning has anything to do with it.

Chalkhill Blues on the Devil's Dyke

by RobParker Although the Devil's Dyke forms the administrative boundary between Suffolk and Cambridgeshire, it is a slice ofland which is outside our biological recording area {Watsonian vice counties 25/26). This is a shame, since it is a wonderful corridor of chalk" downland", supponing an excellent diversity of plant and butterfly species, including Dingy Skipper and Chalkhill Blue. Being the funhest northeast of all the Chalkhill Blue colonies in Britain, I had expected it to be rather weak, so I was pleasantly surprised by my visit on 4Aug00.

The afternoon proved rewarding, when I saw Chalkhill Blues in abundance on the Devil's Dyke just south of Newmarket.

(TL 615615) There were 48 males and 8 females in the first 200metres, and then I stopped counting. Mostly they were sharing the scabious with 6-spot burners, but some were on knapweed, and a favoured source was the low-growing carline thistle, which seemed to have most attraction when its purple had faded and the head was as dry as "everlasting flower" blooms. Some of the males were worn or damaged, but the majority were pristine, and were flying very actively, pursuing passing whites, other males, and courting the females. One pair were seen in cop.

It is very gratifying to find the the colony in such good health on the best sections of the Dyke. I found them flying in good numbers along most of the stretch south of the racecourse, and the males were also straying 50 metres into Suffolk, across the first strip of the racecourse to thesecondary ridge/ hedgeline, though there is much less horseshoe vetch here, and I only saw one female here. The habitat extends further north-west, but on this occasion I did not check the dyke beyond the Al I/AI4, returning instead to cross the Al304 for a look at the dyke running south-east towards Stretchworth. The quality of the habitat deteriorates at this point, where the dyke is lower, and I found no more Chalkhill Blues.

After about a kilometre, the south facing embankment again looks promising, and some conservation work has been done to clear the scrub and give the ground flora a chance. There is plenty of scabious, some horseshoe vetch, and there were good numbers of butterflies of other species. It would be nice to think that the colony might be able to extend in this direction at some time in the future.

A total of I 6 species were seen in a foray lasting an hour and a half, including Walls and one Brown Argus. On that occasion, the Common Blues had not arrived, which made it much easier to check the Chalkhill Blues. Perhaps we should plan a field meeting on the Devil's Dyke for the same time next year.

Being a hopeless optimist, I spent the following days making visits to 5 chalky sites in West Suffolk (and inside the recording area), but without finding a promising habitat, never mind the elusive Lysandra coridon!

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The Suffolk Argus

October2000

2000 Field Trips

Cleopatras and Swallowtails ...

·,-:~·,;.:/·::_:_\\.· '

•••

Saturday, April 29th 2000

Goldsmith's Covert, Nacton Joint meeting with Suffolk Naturalists' Society

by Richard Stewart This walkwas little more than three miles but the difficult boggy conditions in the water meadows made it seem much longer.

The heavy rain of the previous days didn't help but the 24 present had plenty to see. A cloudy cool start eventually became warmer with sunshine and five species of butterflies were recorded: Green-veined White, Peacock, Small T onoiseshell, and Orange Tip, with comma right at the end. Although the habitat is suitable, no speckled woods were observed.

Bird migrants recorded included swallows, sand martins above the large pit, and singing nightingales, whitethroats, chiffchaffs, willow warblers and blackcaps.

Other birds recorded were sparrowhawk, kestrel, greater-spotted woodpecker, at least three green woodpeckers, larks and a yellowhammer. Shelduck were seen in the pie and 24 were on a large field close to the river. On the shore a close study produced one bathing oystercatcher, nine turnstones, curlew and a distant group of what were probably bar-tailed godwits. Long-tailed tits

8

Female Orange Tip

by Douglas Hammersley and wrens were also noted, with several frogs in the wetter areas.

The old oaks were in different stages of development, some still in bud, others with unfurled leaves but probably the most •memorable image-coming at a good psychological moment not long after the boggy water meadow-was the small copse close co the shore which was thickly carpeted with bluebells.

Flora noted, in bud or flower, included: TM 1940- Woodsage, woundwon, fumitoty, climbing corydalis, redcurrant, barren strawberry, bluebells, ground ivy, germander speedwell, honeysuckle, forget-me-not, red campion, dog's mercury, yellow archangel, enchanter's nightshade, opposite and alternate leaved golden saxifrage, cuckoo flower, large pimpernel, water mint, brooklime and kingcup. On the shore sea milkwort and shepherd's nettle were noted and a large colony of silverweed. TM 2040: Yellowwort, corn spurrey, wild radish, corn marigold (some actually in flower), shepherd's nettle, bluebells, yellow toadflax, alkanec, field pansy, spring beauty and groundsel.

We thank the Orwell Park Estate for allowing access co their private land.

by James Mann Having visited the Sub-Prefecture in Ceret in yet another attempt to get my car's French registration and being told you must visit D.R.I.R.E. in Perpignan on Lundi matin (Monday morning) to get French Attestation, but that is another story, we decided that as it was 27°C we would visit the Ermitage.

As we were approaching we began to see a lot of bright yellow butterflies. We realised from the large size and the orange flash across the top of the forewings that they were male Cleopatras. We arrived at the Ermitage and sat in our favourite spot over looking the valley. A steady stream of male Cleopatras passed by looking for females. I got out my camera, many of you will remember me trying to photograph a male Brimstone, well Cleopatras are ten times worse, my only hope is to disguise myself as a female Cleopatra or perhaps wait until next week when the females should emerge and hope that this slows the males down a bit.

Before I saw them I often wondered how I would distinguish between ordinary and Scarce Swallowtails. On this afternoon both species decided to help me in this quest. A beautiful freshly emerged Scarce Swallowtail was gliding back and forth over its ten metre long domain at about head height. As it flew or should I say glided past my face it seemed to look at me and say "Look I am the one with the long tails, and

now I will land and settle with my wings closed so you can see the bright yellow tips to my tails, hurry up with that camera I've got a territory to patrol. Observe as I cum at the end of my patch allowing you to see the stripes on the tops of my wings like the markings on the wings of some human aerobatic planes, that over there is an ordinary Swallowtail".

I then gee "I may just be an ordinary Swallowtail but look I have landed and will hold my wings open so you can admire my bright yellow and black markings. I may not have such long tails as him but my marking is much more striking and all he seems to do is fly up and down ten metres off to chase those Hummingbird Hawkmochs who think they are so clever to hover and jab chat huge proboscis into flowers".

In my admiration of the above species and my appreciation of the lesson in identification I must not forget to mention the Walls, Southern Speckled woods, Red Admirals, Small and Green-veined Whites and a solitary Blue, the size of a little Blue, but it flew off before I could make a definite identification.

On the way back in the old car, yes the one with the sticky tape holding the bodywork together, we stopped for Anne to look at some Tree Heathers and on the mini-gorse bushes of gorse we saw Green Hairstreaks.

You may ask if this is Summer. The next day Anne found out, she went to the market and asked her plant man why some of her shrubs were not budding and coming into leaf. He replied in perfect Cacalonian French "What do you expect, it is still Winter".

17

The Suffolk Argus

Also seen here were patrolling Norfolk Hawker Dragonflies, an endangered species confined to the Norfolk and Suffolk Broads.

Another "Hawker" which was on the wing along this dyke was the Hairy Dragonfly.

Our thanks to Steve Goddard for identifying these, also other species listed below. This then brought our day's activities to an end and we duly returned co our cars for a much needed cold drink!

October2000

Saturday, July 1st 2000

Tuesday, May 16th 2000

Joint IDNHS/BC meeting: Bramford Meadows to Needham .

Market along the river Gipping

Golf Club and Purdis Heath

by Richard Stewart

Full species list of butterflies noted:Swallowrail, Red Admiral, Painted Lady, Small Tortoiseshell, Speckled Wood, Meadow Brown, Brimstone, Common Blue, Small White.

Full species list of Dragonflies and Damselflies noted:Banded Demoiselle, Black-tailed Skimmer, Broad-bodied Chaser, Norfolk Hawker, Hairy Dragonfly, Large Red Damselfly, Azure Damselfly, Blue-tailed Damselfly, Common Blue Damselfly.

Swallow Tail

by Douglas Hammersley

16

This was a cloudy day but relatively warm and the 12 present had a strenuous but enjoyable walk punctuated unfortunately by a considerable amount of peripheral noise from nearby road traffic, trains and a convoy of 6 helicopters.

These contrasted with the beautiful surroundings of the Gipping. Red eyed damselfly was found and two Emperor dragonflies but the beautiful Banded Demoiselle was the chief preoccupation, with around 400 recorded on the walk.

Despite the lack of sun the butterfly sightings included Small Tortoiseshell, Speckled Wood, Painted Lady, Red Admiral, Comma, Green-veined and Small White, Peacock caterpillars and about 200 Meadow Browns. There were brief glimpses of at least three kingfishers and the stop for lunch was memorable for the curious cows, in some number, which approached in a pincer movement, one group taking advantage of riverside vegetation co suddenly appear close to us. We retreated over a nearby fence but resumption of the lunch, in less comfortable conditions, was then accompanied by rain. We hope to do the other half of the walk, from Needham to Stowmarket, next year.

Joint meeting with BC/IDNHS

by Richard Stewart The 18 present were taken on an extensive tour of the golf club by Neil Sherman, who is now the full-time Conservation Officer.

What threatened to be a wet afternoon, with possible thunderstorms, turned out to be relatively sunny and before the walk began Neil showed the group several moths freshly trapped: Poplar Hawk, Mocha, Scalloped Hazel, Orange Footman, Muslin, Great Prominent, Sallow Kitten and a Purple Hairstreakpupa.

The walk covered the shorter public course, the Squirrell trail through the woods and by the side of the old Decoy pond, with tea eventually being eaten close to the fence separating the course from Purdis Heath.

The final part was back along the edge of the Heath and up the lane co the car park.

This stretch was covered in cloudy conditions but the actual golf course walk produced several Green Hairstreaks, Small Coppers, Large and Green-veined white and Orange Tip. A Wall had been reported the previous day in a sheltered pit and though Speckled Wood weren't recorded they had been noted on site in increasing numbers.

Neil was able co demonstrate many examples of conservation work beneficial co wildlife, especially the vistas opened up between the course and the old Decoy pond. He pointed out areas where Gorse was managed on a rotational regime, the attempts to increase Heather coverage, planting of Buckthorn to hopefully attract Brimstones and leaving fallen trees to create specialised habitats.

Flora noted included: Broom, gorse, hawthorn in bloom, creeping corydalis, honeysuckle, kingcup, greater tussock sedge, gipsywort, spring beauty, hornwort, bugle, greater birdsfoor-trefoil, twayblade, opposite leaved golden saxifrage, oxeye daisy, red campion, wood meadowgrass, yellow flag, cuckoo flower and greater celandine.

Birds included: Garden warbler, reed warbler, greater spotted and green woodpecker, mistle thrush, nightingale, heron, swifts, cuckoo, whitethroat, blackcap, and chiffchaff. Other observations were of toad tadpoles en masse, a fast-flying hornet, a female broadbodied chaser, blue-tailed, and red eyed damselflies, swan mussel shells, bat boxes used by pipistrelles plus lizards and toads.

We thank the Ipswich Golf Club for permitting this meeting: several of those present were very surprised at the undulating nature of the site and its rich variety of habitats.

9

The Suffolk Argus

Saturday, June 3rd 2000

Dingy Skipper Survey in the King's Forest Joint meeting with BC/SNS

by Richard Stewart Just five turned up on a day that had some initial cloud but was otherwise perfect for recording, being hot, and calm. An initial walk down part of the Chalk Lane produced Speckled Wood, Small Copper, Common Blue, Small Heath, Orange Tip, Small White and a Large White fluttering and gliding at low level as it fed on buttercups.

Ac the first of the two sites recently damaged by Forestry operations it was good to record, close by, both Brown Argus and Green Hairsrreak. Common Blues were the most abundant species and by spreading out across a large 'meadow' area a Painted Lady was added co rhe list. The second damaged sire is now largely vigorous grasses with little sign of the previous clumps of nectar rich Viper's Bugloss. Despite many assurances given to me the other side of this sire had again been driven over,

October2000

just along the screech reseeded by BC with Birdsfooc-rrefoil and cranesbill. At least five woodlarks, calling cuckoo and rurcle dove were also noted before we moved to a known Dingy Skipper sire at Wardwell.

Here the spreading out principle was used to record four Dingy Skippers with a particularly welcome two more around the corner. This effectively extends the area of the colony.

Hare and muntjac were noted and extra butterfly species were Comma, male and female Brimstone and Small Tortoiseshell larvae plus the only Greenveined White of the day. At least 60 Common Blues were recorded along the Dingy Skipper ride. The rest of the day was spent across the road, in the area to the South of John O'Groats Cottages. No Dingy Skippers were found but two Peacocks and a Holly Blue were added. Robe Parker's effotts to verify a Silver Y moth as we walked back along the Brandon road were successful and he found himself facing a newly emerged Large Skipper, an early record and an unexpected ending to a very successful day: 18 species, a very high total for Suffolk early in June.

The low turnout was partially the result of a BC weekend trip to the South Coast but perhaps the presence of a few of those constantly moaning, from the SNS, about lack of detailed recording at field meetings, might have persuaded them otherwise.

Dingy Skipper

Sunday, June 18th 2000

Strumpshaw Fen, Norfolk

by Alan Johnson

.,

A total of 18 members and friends met in the car park of the R.S.P.B. Reserve on what was to be one of the hottest days of the year, so far, with temperatures in the low80'sF. We were pleased to welcome two "new faces" to our field trip, Carol and Colin, from the local area. The purpose of our visit was to see one of the rarest of our British Butterflies, the Swallowtail and before our walk even commenced an obliging specimen flew across the car park to pause briefly on a • creamy-white flower of an Elder. This was probably the clearest view some of us were to have of this, the largest of our resident butterflies, the larvae of which feed largely on Milk Parsley and which has a restricted distribution, only occurring in wet, open fens around the Norfolk Broads.

Further sightings were obtained after crossing the railway line and entering the area of reed-beds and dykes at the western end of the reserve. Due to the warm sunshine the butterflies were flying strongly over the reeds, only one seen settling briefly on the flower head of a rhisrle. Whilst in this area, the "birders" in our parry pointed out Marsh Harriers circling over the centre of the reserve, also the sound of both Cetti 's and reed Warblers.

Further on, along our route, Paul Gilson's attention was drawn to the "Scrape" by the loud and agitated calls of the Black-headed Gulls, to see a Mink take one of their young chicks.

Painted Lady, egg laying on thistle at Strumpsham Fen

by BerylJohnson Along the edge of the path, Paul also pointed out a Painted Lady, egg laying on Thisrle and Orange Tip larvae on Garlic Mustard. Our "picnic" lunch was taken in the shade of the trees growing along the bank of the River Yare and where Brimstone fluttered by.

Afterwards we walked on to the flower meadows, these being never ploughed or treated with chemicals of any kind. A mown path through them allowed us to see Southern Marsh Orchid, Yellow Rattle, Meadow Thisrle and Ragged Robin. Water Soldier was growing in one of the small dykes that intersect these meadows, this plant being an indicator of pure water.

by DouglasHammersley

10

15

The Suffolk Argus

Bentley Woods

Saturday, June 3rd 2000

Sunday afternoon 4 th June

Hordle Cliff, Hampshire - in search of Glanville Fritillary

We travelled in convoy and arrived at the wood about 2pm. On advice from Jean Garrod we followed a well-worn track to a forest clearing. Some "Pearl-bordered Fritillaries" were soon spotted in flight, but which species? The clearing was damp and well sheltered and consequently the "pearls" soon took flight when approached. Then some Marsh Fritillaries were found which were much more cooperative, one even perched on Jean's finger!

Eventually, thanks to the persistence of Geoff Hayes a Pearl was positively identified as a Small Pearlbordered. Although we probably saw Pearl-bordered Fritillary we cannot be cenain.

Geoff found the second Duke of Burgundy for the day, but unfortunately it had passed away! The only other species of lepidoptera noted were Speckled Wood and the Speckled Yellow moth.

Thus concluded a successful weekend, which although did not produce large numbers of butterflies due to the weather, did produce as many species as we could expect to see.

14

October2000

by Paul Gilson

Speckled Wood

by Angie Steele

Eleven members met at the car park to the west of Milford-on-Sea in search of one of Britain's rarest butterflies. This was a second attempt for some members as last years expedition had been unsuccessful due to overcast and windy weather conditions. As we left the car park the sun began to shine and with nothing but a light breeze blowing the conditions looked good.

The walk down to the cliff was a couple of hundred metres and then there is a tricky descent down onto the beach.

Conditions underfoot on the cliff had been made difficult by recent rain and so it took a little while to negotiate our way down.

Once on the beach we set off east towards a spot which Jean and Ken Garrod had visited the day before and seen the Glanville Fricillary. With the sun beating down this area of the undercliff was producing its own micro-climate which was several degrees hotter than the cliff top. It wasn't long

before we came across our first Glanville and then others appeared as we paused for a while co take photographs. We were even lucky enough to see and photograph a macing pair. The species seemed to .be concentrated in this small area of the undercliff although no doubt there were others higher up where it was too dangerous to walk. The area contained the caterpillars foodplant, Ribwort Plantain and plenty of nectar sources in the form of Thrift and Bird's-foot Trefoil.

A walk further along the beach by some members did not locate any further Glanville's although we did come across a lone Painted Lady. Despite the weather being sunny and warm the undercliff did not contain a vase amount of butterflies on the day. Common Blue and Large Skipper were also seen together with a beautiful Creamspot tiger moth. As the group made their way back co the car park after first negotiating a difficult ascent up the cliff, we knew that the weather conditions on the day had been just right for seeing the Glanville Fricillary. With the weather looking good for the afternoon some members decided co head for Marcin Down while others with children cook the opportunity to spend a relaxing time on Bournemouth seafront.

11

The Suffolk Argus

Saturday, June 3rd 2000 and Sunday June 4th 2000

Martin Down, Hampshire and Bentley Wood, Wiltshire

by Jim Foster The field trip for Manin Down was scheduled for the 4,1,June but following a successful morning at Hordle Cliff on the Saturday it was decided to visit Manin Down in that afternoon. The weather previously in the week had not been conducive for seeking butterflies but Saturday was warm and it was thought best to take advantage of what sunshine was available.

12

Occober2000

Martin Down Saturday afternoon 3 rd June Manin Down is a National Nature Reserve of about 830 acres on the Hampshire/ Dorset border ?J}dis one of the country's most important chalkland reserves.

Chalkland is a habitat, which is unfonunately not well represented in Suffolk. In simple terms the reserve consists of chalk grassland to the south of the A354 and woodland to the north. We opted to explore the grassland for the afternoon.

Along the southwestern boundary of the reserve is Bokerley Dyke, an ancient earthwork dating from the Romano-British period some 1600 years ago. We took the path that followed the Dyke and soon saw some familiar butterflies, Brimstone and Small Heath. Brown Argus, Orange Tip, a solitary Small Copper and Common Blue were also seen. One Common Blue seen was thought to be a female, which was significantly bluer than the normal female.

In the meadow near a large ancient earthwork a number of Adonis Blue were seen, the males displaying their vivid blue colour. One female Adonis Blue was also observed. The Dyke is also purported to have a colony of Marsh Fritillary however none were seen and the leader had searched on two days prior without success. On reaching a footpath in what resembled a ditch we expected to find Dingy Skipper as there was plenry of its foodplant, Horseshoe Vetch, and the habitat appeared to be a warm microclimate, however we were not successful. N evenheless we did find a number of Small Blues alighting on a large log that was adjacent to the path. By now the weather was cooling so we returned to the car park knowing there was plenry more land to explore tomorrow.

Moths identified during the visit included Burnet Companion, Mother Shipton and Cinnabar. Chalk grassland is often rich in orchids and Manin Down is no exception.

Common Spotted Orchids and Burnttipped Orchids were seen, also a solitary Twayblade, that was at first misidentified as a Frog Orchid by the leader!

Male Duke of Burgundy

by DouglasHammersley

Small Blue

by DouglasHammersley

Martin Down Sunday morning 4' h June Sunday morning dawned with some ominous dark clouds but the sun did break through from time to time and when it did it was quite hot. Some of the parry arrived before the scheduled start time of 10.30am and commenced by going into the woodland.

Directions were left in a car so both groups could meet at the appointed time.

At the entrance to the woodland track the colony of Small Blue were seen. This colony was seen on 23 rd May last year by the Suffolk group (see Suffolk Argus, November 1999). The first woodland clearing yielded two rather worn specimens of Dingy Skippers. Speckled Woods were seen along the rides, as one would expect in what was ideal habitat for them. A large clearing with numerous cowslips was searched for the Duke of Burgundy but to no avail. The weather was cooling and the Duke of Burgundy tends to roost in scrub, often higher than six feet, which makes it difficult to locate. We were rewarded with two Grizzled Skippers, one at rest on a Spotted Orchid, which made an attractive sight.

Afrer finding a further Dingy Skipper, in fine condition this time, we retraced our steps.

On coming to the clearing with cowslips the sharp eyes of Stuart Gilson spotted a butterfly, which was a Duke of Burgundy.

Well-done Stuart!

A colony of Greater Butterfly Orchids was also noted, as were the Columbine, Aquikgia vulgaris that appear to be native to chalk woodland/scrub.

Our weekend trip was drawing to a close, however we had been informed that Bentley Woods were worth a visit and it was only a short diversion on the way home back to Suffolk, some of the parry decide to try their luck.

13

The Suffolk Argus

Saturday, June 3rd 2000 and Sunday June 4th 2000

Martin Down, Hampshire and Bentley Wood, Wiltshire

by Jim Foster The field trip for Manin Down was scheduled for the 4,1,June but following a successful morning at Hordle Cliff on the Saturday it was decided to visit Manin Down in that afternoon. The weather previously in the week had not been conducive for seeking butterflies but Saturday was warm and it was thought best to take advantage of what sunshine was available.

12

Occober2000

Martin Down Saturday afternoon 3 rd June Manin Down is a National Nature Reserve of about 830 acres on the Hampshire/ Dorset border ?J}dis one of the country's most important chalkland reserves.

Chalkland is a habitat, which is unfonunately not well represented in Suffolk. In simple terms the reserve consists of chalk grassland to the south of the A354 and woodland to the north. We opted to explore the grassland for the afternoon.

Along the southwestern boundary of the reserve is Bokerley Dyke, an ancient earthwork dating from the Romano-British period some 1600 years ago. We took the path that followed the Dyke and soon saw some familiar butterflies, Brimstone and Small Heath. Brown Argus, Orange Tip, a solitary Small Copper and Common Blue were also seen. One Common Blue seen was thought to be a female, which was significantly bluer than the normal female.

In the meadow near a large ancient earthwork a number of Adonis Blue were seen, the males displaying their vivid blue colour. One female Adonis Blue was also observed. The Dyke is also purported to have a colony of Marsh Fritillary however none were seen and the leader had searched on two days prior without success. On reaching a footpath in what resembled a ditch we expected to find Dingy Skipper as there was plenry of its foodplant, Horseshoe Vetch, and the habitat appeared to be a warm microclimate, however we were not successful. N evenheless we did find a number of Small Blues alighting on a large log that was adjacent to the path. By now the weather was cooling so we returned to the car park knowing there was plenry more land to explore tomorrow.

Moths identified during the visit included Burnet Companion, Mother Shipton and Cinnabar. Chalk grassland is often rich in orchids and Manin Down is no exception.

Common Spotted Orchids and Burnttipped Orchids were seen, also a solitary Twayblade, that was at first misidentified as a Frog Orchid by the leader!

Male Duke of Burgundy

by DouglasHammersley

Small Blue

by DouglasHammersley

Martin Down Sunday morning 4' h June Sunday morning dawned with some ominous dark clouds but the sun did break through from time to time and when it did it was quite hot. Some of the parry arrived before the scheduled start time of 10.30am and commenced by going into the woodland.

Directions were left in a car so both groups could meet at the appointed time.

At the entrance to the woodland track the colony of Small Blue were seen. This colony was seen on 23 rd May last year by the Suffolk group (see Suffolk Argus, November 1999). The first woodland clearing yielded two rather worn specimens of Dingy Skippers. Speckled Woods were seen along the rides, as one would expect in what was ideal habitat for them. A large clearing with numerous cowslips was searched for the Duke of Burgundy but to no avail. The weather was cooling and the Duke of Burgundy tends to roost in scrub, often higher than six feet, which makes it difficult to locate. We were rewarded with two Grizzled Skippers, one at rest on a Spotted Orchid, which made an attractive sight.

Afrer finding a further Dingy Skipper, in fine condition this time, we retraced our steps.

On coming to the clearing with cowslips the sharp eyes of Stuart Gilson spotted a butterfly, which was a Duke of Burgundy.

Well-done Stuart!

A colony of Greater Butterfly Orchids was also noted, as were the Columbine, Aquikgia vulgaris that appear to be native to chalk woodland/scrub.

Our weekend trip was drawing to a close, however we had been informed that Bentley Woods were worth a visit and it was only a short diversion on the way home back to Suffolk, some of the parry decide to try their luck.

13

The Suffolk Argus

Bentley Woods

Saturday, June 3rd 2000

Sunday afternoon 4 th June

Hordle Cliff, Hampshire - in search of Glanville Fritillary

We travelled in convoy and arrived at the wood about 2pm. On advice from Jean Garrod we followed a well-worn track to a forest clearing. Some "Pearl-bordered Fritillaries" were soon spotted in flight, but which species? The clearing was damp and well sheltered and consequently the "pearls" soon took flight when approached. Then some Marsh Fritillaries were found which were much more cooperative, one even perched on Jean's finger!

Eventually, thanks to the persistence of Geoff Hayes a Pearl was positively identified as a Small Pearlbordered. Although we probably saw Pearl-bordered Fritillary we cannot be cenain.

Geoff found the second Duke of Burgundy for the day, but unfortunately it had passed away! The only other species of lepidoptera noted were Speckled Wood and the Speckled Yellow moth.

Thus concluded a successful weekend, which although did not produce large numbers of butterflies due to the weather, did produce as many species as we could expect to see.

14

October2000

by Paul Gilson

Speckled Wood

by Angie Steele

Eleven members met at the car park to the west of Milford-on-Sea in search of one of Britain's rarest butterflies. This was a second attempt for some members as last years expedition had been unsuccessful due to overcast and windy weather conditions. As we left the car park the sun began to shine and with nothing but a light breeze blowing the conditions looked good.

The walk down to the cliff was a couple of hundred metres and then there is a tricky descent down onto the beach.

Conditions underfoot on the cliff had been made difficult by recent rain and so it took a little while to negotiate our way down.

Once on the beach we set off east towards a spot which Jean and Ken Garrod had visited the day before and seen the Glanville Fricillary. With the sun beating down this area of the undercliff was producing its own micro-climate which was several degrees hotter than the cliff top. It wasn't long

before we came across our first Glanville and then others appeared as we paused for a while co take photographs. We were even lucky enough to see and photograph a macing pair. The species seemed to .be concentrated in this small area of the undercliff although no doubt there were others higher up where it was too dangerous to walk. The area contained the caterpillars foodplant, Ribwort Plantain and plenty of nectar sources in the form of Thrift and Bird's-foot Trefoil.

A walk further along the beach by some members did not locate any further Glanville's although we did come across a lone Painted Lady. Despite the weather being sunny and warm the undercliff did not contain a vase amount of butterflies on the day. Common Blue and Large Skipper were also seen together with a beautiful Creamspot tiger moth. As the group made their way back co the car park after first negotiating a difficult ascent up the cliff, we knew that the weather conditions on the day had been just right for seeing the Glanville Fricillary. With the weather looking good for the afternoon some members decided co head for Marcin Down while others with children cook the opportunity to spend a relaxing time on Bournemouth seafront.

11

The Suffolk Argus

Saturday, June 3rd 2000

Dingy Skipper Survey in the King's Forest Joint meeting with BC/SNS

by Richard Stewart Just five turned up on a day that had some initial cloud but was otherwise perfect for recording, being hot, and calm. An initial walk down part of the Chalk Lane produced Speckled Wood, Small Copper, Common Blue, Small Heath, Orange Tip, Small White and a Large White fluttering and gliding at low level as it fed on buttercups.

Ac the first of the two sites recently damaged by Forestry operations it was good to record, close by, both Brown Argus and Green Hairsrreak. Common Blues were the most abundant species and by spreading out across a large 'meadow' area a Painted Lady was added co rhe list. The second damaged sire is now largely vigorous grasses with little sign of the previous clumps of nectar rich Viper's Bugloss. Despite many assurances given to me the other side of this sire had again been driven over,

October2000

just along the screech reseeded by BC with Birdsfooc-rrefoil and cranesbill. At least five woodlarks, calling cuckoo and rurcle dove were also noted before we moved to a known Dingy Skipper sire at Wardwell.

Here the spreading out principle was used to record four Dingy Skippers with a particularly welcome two more around the corner. This effectively extends the area of the colony.

Hare and muntjac were noted and extra butterfly species were Comma, male and female Brimstone and Small Tortoiseshell larvae plus the only Greenveined White of the day. At least 60 Common Blues were recorded along the Dingy Skipper ride. The rest of the day was spent across the road, in the area to the South of John O'Groats Cottages. No Dingy Skippers were found but two Peacocks and a Holly Blue were added. Robe Parker's effotts to verify a Silver Y moth as we walked back along the Brandon road were successful and he found himself facing a newly emerged Large Skipper, an early record and an unexpected ending to a very successful day: 18 species, a very high total for Suffolk early in June.

The low turnout was partially the result of a BC weekend trip to the South Coast but perhaps the presence of a few of those constantly moaning, from the SNS, about lack of detailed recording at field meetings, might have persuaded them otherwise.

Dingy Skipper

Sunday, June 18th 2000

Strumpshaw Fen, Norfolk

by Alan Johnson

.,

A total of 18 members and friends met in the car park of the R.S.P.B. Reserve on what was to be one of the hottest days of the year, so far, with temperatures in the low80'sF. We were pleased to welcome two "new faces" to our field trip, Carol and Colin, from the local area. The purpose of our visit was to see one of the rarest of our British Butterflies, the Swallowtail and before our walk even commenced an obliging specimen flew across the car park to pause briefly on a • creamy-white flower of an Elder. This was probably the clearest view some of us were to have of this, the largest of our resident butterflies, the larvae of which feed largely on Milk Parsley and which has a restricted distribution, only occurring in wet, open fens around the Norfolk Broads.

Further sightings were obtained after crossing the railway line and entering the area of reed-beds and dykes at the western end of the reserve. Due to the warm sunshine the butterflies were flying strongly over the reeds, only one seen settling briefly on the flower head of a rhisrle. Whilst in this area, the "birders" in our parry pointed out Marsh Harriers circling over the centre of the reserve, also the sound of both Cetti 's and reed Warblers.

Further on, along our route, Paul Gilson's attention was drawn to the "Scrape" by the loud and agitated calls of the Black-headed Gulls, to see a Mink take one of their young chicks.

Painted Lady, egg laying on thistle at Strumpsham Fen

by BerylJohnson Along the edge of the path, Paul also pointed out a Painted Lady, egg laying on Thisrle and Orange Tip larvae on Garlic Mustard. Our "picnic" lunch was taken in the shade of the trees growing along the bank of the River Yare and where Brimstone fluttered by.

Afterwards we walked on to the flower meadows, these being never ploughed or treated with chemicals of any kind. A mown path through them allowed us to see Southern Marsh Orchid, Yellow Rattle, Meadow Thisrle and Ragged Robin. Water Soldier was growing in one of the small dykes that intersect these meadows, this plant being an indicator of pure water.

by DouglasHammersley

10

15

The Suffolk Argus

Also seen here were patrolling Norfolk Hawker Dragonflies, an endangered species confined to the Norfolk and Suffolk Broads.

Another "Hawker" which was on the wing along this dyke was the Hairy Dragonfly.

Our thanks to Steve Goddard for identifying these, also other species listed below. This then brought our day's activities to an end and we duly returned co our cars for a much needed cold drink!

October2000

Saturday, July 1st 2000

Tuesday, May 16th 2000

Joint IDNHS/BC meeting: Bramford Meadows to Needham .

Market along the river Gipping

Golf Club and Purdis Heath

by Richard Stewart

Full species list of butterflies noted:Swallowrail, Red Admiral, Painted Lady, Small Tortoiseshell, Speckled Wood, Meadow Brown, Brimstone, Common Blue, Small White.

Full species list of Dragonflies and Damselflies noted:Banded Demoiselle, Black-tailed Skimmer, Broad-bodied Chaser, Norfolk Hawker, Hairy Dragonfly, Large Red Damselfly, Azure Damselfly, Blue-tailed Damselfly, Common Blue Damselfly.

Swallow Tail

by Douglas Hammersley

16

This was a cloudy day but relatively warm and the 12 present had a strenuous but enjoyable walk punctuated unfortunately by a considerable amount of peripheral noise from nearby road traffic, trains and a convoy of 6 helicopters.

These contrasted with the beautiful surroundings of the Gipping. Red eyed damselfly was found and two Emperor dragonflies but the beautiful Banded Demoiselle was the chief preoccupation, with around 400 recorded on the walk.

Despite the lack of sun the butterfly sightings included Small Tortoiseshell, Speckled Wood, Painted Lady, Red Admiral, Comma, Green-veined and Small White, Peacock caterpillars and about 200 Meadow Browns. There were brief glimpses of at least three kingfishers and the stop for lunch was memorable for the curious cows, in some number, which approached in a pincer movement, one group taking advantage of riverside vegetation co suddenly appear close to us. We retreated over a nearby fence but resumption of the lunch, in less comfortable conditions, was then accompanied by rain. We hope to do the other half of the walk, from Needham to Stowmarket, next year.

Joint meeting with BC/IDNHS

by Richard Stewart The 18 present were taken on an extensive tour of the golf club by Neil Sherman, who is now the full-time Conservation Officer.

What threatened to be a wet afternoon, with possible thunderstorms, turned out to be relatively sunny and before the walk began Neil showed the group several moths freshly trapped: Poplar Hawk, Mocha, Scalloped Hazel, Orange Footman, Muslin, Great Prominent, Sallow Kitten and a Purple Hairstreakpupa.

The walk covered the shorter public course, the Squirrell trail through the woods and by the side of the old Decoy pond, with tea eventually being eaten close to the fence separating the course from Purdis Heath.

The final part was back along the edge of the Heath and up the lane co the car park.

This stretch was covered in cloudy conditions but the actual golf course walk produced several Green Hairstreaks, Small Coppers, Large and Green-veined white and Orange Tip. A Wall had been reported the previous day in a sheltered pit and though Speckled Wood weren't recorded they had been noted on site in increasing numbers.

Neil was able co demonstrate many examples of conservation work beneficial co wildlife, especially the vistas opened up between the course and the old Decoy pond. He pointed out areas where Gorse was managed on a rotational regime, the attempts to increase Heather coverage, planting of Buckthorn to hopefully attract Brimstones and leaving fallen trees to create specialised habitats.

Flora noted included: Broom, gorse, hawthorn in bloom, creeping corydalis, honeysuckle, kingcup, greater tussock sedge, gipsywort, spring beauty, hornwort, bugle, greater birdsfoor-trefoil, twayblade, opposite leaved golden saxifrage, oxeye daisy, red campion, wood meadowgrass, yellow flag, cuckoo flower and greater celandine.

Birds included: Garden warbler, reed warbler, greater spotted and green woodpecker, mistle thrush, nightingale, heron, swifts, cuckoo, whitethroat, blackcap, and chiffchaff. Other observations were of toad tadpoles en masse, a fast-flying hornet, a female broadbodied chaser, blue-tailed, and red eyed damselflies, swan mussel shells, bat boxes used by pipistrelles plus lizards and toads.

We thank the Ipswich Golf Club for permitting this meeting: several of those present were very surprised at the undulating nature of the site and its rich variety of habitats.

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The Suffolk Argus

October2000

2000 Field Trips

Cleopatras and Swallowtails ...

·,-:~·,;.:/·::_:_\\.· '

•••

Saturday, April 29th 2000

Goldsmith's Covert, Nacton Joint meeting with Suffolk Naturalists' Society

by Richard Stewart This walkwas little more than three miles but the difficult boggy conditions in the water meadows made it seem much longer.

The heavy rain of the previous days didn't help but the 24 present had plenty to see. A cloudy cool start eventually became warmer with sunshine and five species of butterflies were recorded: Green-veined White, Peacock, Small T onoiseshell, and Orange Tip, with comma right at the end. Although the habitat is suitable, no speckled woods were observed.

Bird migrants recorded included swallows, sand martins above the large pit, and singing nightingales, whitethroats, chiffchaffs, willow warblers and blackcaps.

Other birds recorded were sparrowhawk, kestrel, greater-spotted woodpecker, at least three green woodpeckers, larks and a yellowhammer. Shelduck were seen in the pie and 24 were on a large field close to the river. On the shore a close study produced one bathing oystercatcher, nine turnstones, curlew and a distant group of what were probably bar-tailed godwits. Long-tailed tits

8

Female Orange Tip

by Douglas Hammersley and wrens were also noted, with several frogs in the wetter areas.

The old oaks were in different stages of development, some still in bud, others with unfurled leaves but probably the most •memorable image-coming at a good psychological moment not long after the boggy water meadow-was the small copse close co the shore which was thickly carpeted with bluebells.

Flora noted, in bud or flower, included: TM 1940- Woodsage, woundwon, fumitoty, climbing corydalis, redcurrant, barren strawberry, bluebells, ground ivy, germander speedwell, honeysuckle, forget-me-not, red campion, dog's mercury, yellow archangel, enchanter's nightshade, opposite and alternate leaved golden saxifrage, cuckoo flower, large pimpernel, water mint, brooklime and kingcup. On the shore sea milkwort and shepherd's nettle were noted and a large colony of silverweed. TM 2040: Yellowwort, corn spurrey, wild radish, corn marigold (some actually in flower), shepherd's nettle, bluebells, yellow toadflax, alkanec, field pansy, spring beauty and groundsel.

We thank the Orwell Park Estate for allowing access co their private land.

by James Mann Having visited the Sub-Prefecture in Ceret in yet another attempt to get my car's French registration and being told you must visit D.R.I.R.E. in Perpignan on Lundi matin (Monday morning) to get French Attestation, but that is another story, we decided that as it was 27°C we would visit the Ermitage.

As we were approaching we began to see a lot of bright yellow butterflies. We realised from the large size and the orange flash across the top of the forewings that they were male Cleopatras. We arrived at the Ermitage and sat in our favourite spot over looking the valley. A steady stream of male Cleopatras passed by looking for females. I got out my camera, many of you will remember me trying to photograph a male Brimstone, well Cleopatras are ten times worse, my only hope is to disguise myself as a female Cleopatra or perhaps wait until next week when the females should emerge and hope that this slows the males down a bit.

Before I saw them I often wondered how I would distinguish between ordinary and Scarce Swallowtails. On this afternoon both species decided to help me in this quest. A beautiful freshly emerged Scarce Swallowtail was gliding back and forth over its ten metre long domain at about head height. As it flew or should I say glided past my face it seemed to look at me and say "Look I am the one with the long tails, and

now I will land and settle with my wings closed so you can see the bright yellow tips to my tails, hurry up with that camera I've got a territory to patrol. Observe as I cum at the end of my patch allowing you to see the stripes on the tops of my wings like the markings on the wings of some human aerobatic planes, that over there is an ordinary Swallowtail".

I then gee "I may just be an ordinary Swallowtail but look I have landed and will hold my wings open so you can admire my bright yellow and black markings. I may not have such long tails as him but my marking is much more striking and all he seems to do is fly up and down ten metres off to chase those Hummingbird Hawkmochs who think they are so clever to hover and jab chat huge proboscis into flowers".

In my admiration of the above species and my appreciation of the lesson in identification I must not forget to mention the Walls, Southern Speckled woods, Red Admirals, Small and Green-veined Whites and a solitary Blue, the size of a little Blue, but it flew off before I could make a definite identification.

On the way back in the old car, yes the one with the sticky tape holding the bodywork together, we stopped for Anne to look at some Tree Heathers and on the mini-gorse bushes of gorse we saw Green Hairstreaks.

You may ask if this is Summer. The next day Anne found out, she went to the market and asked her plant man why some of her shrubs were not budding and coming into leaf. He replied in perfect Cacalonian French "What do you expect, it is still Winter".

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The Suffolk Argus

So what now, fellow butterfly watchers?

by RobParker Five years' determined recording for the Millennium Atlas by some 700 butterflywatchers has left some of us exhausted, and deserving a break from "square-bashing", and yet our thoughts soon turned to the subject of how we could best enjoy the forthcoming season.

Those with residual enthusiasm turned up at the Ipswich Museum on 15 April to hear the County Recorder's proposals, and to discuss with one another the endeavours most likely to produce satisfying results.

On the drive back, I formulated my own strategy, reflecting that we had heard some good ideas, and that, as there was no "three line whip" for this year, we were free to develop our individual ideas, tailored to personal interests. This year, I will watch butterflies in counties other than Suffolk without a guilty feeling of time-wasting. I might even take a holiday during the summer months! On the other hand, I really do want to use the opportunity to spend time in one place to watch details of butterfly behaviour, habitat preference and abundance. I will run a regular transect walk on the nearby nature reserve, where I can particularly watch out to see if the Brimstones are taking an interest in the

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October 2000

Alder buckthorn planted there last year.

This will make a change from hopping from tetrad to tetrad, and should prove more relaxing.

On dud days, I will sort out how many local churchyards I might be able to cover for Richard's 2001 survey. There are 2 excellent cemetries with substantial longgrass areas right in the middle of Bury St Edmunds, and one in Horringer which I covered superficially last year. If everyone did the same, we would start 2001 with the beginnings of a plan.

Although there is no National BC recording objective for the immediate future, the 3 priority species for the Suffolk Action Plan (Silver-studded blue, Whiteletter Hairstreak, and Dingy Skipper) surely deserve special attention. We can look for them in former haunts, check the strength of the populations at the known sites, and judge the habitat quality against the ideals in the Biodiversity Action Plans. I can do all this for Dingy Skippers, and although there are precious few White-letter Hairstreaks nc.ar Bury, it might be worth a few days' effort in July to look over the good Elm hedges just west of here.Last year, I missed the Silver-studded Blue count because my car packed up in July, so that gives me an extra incentive to see them this year.

And yes, now I come to think of it, I am sure I found suitable habitat for Green Hairstreaks on cold days, and Purple Hairstreaks on cloudy days, so re-visits on warm days are certainly on the agenda. Any day now, in fact!

Clearly, 2000 is not going to be a totally idle season, but it could still be relaxing, and gratifying too, if forward planning has anything to do with it.

Chalkhill Blues on the Devil's Dyke

by RobParker Although the Devil's Dyke forms the administrative boundary between Suffolk and Cambridgeshire, it is a slice ofland which is outside our biological recording area {Watsonian vice counties 25/26). This is a shame, since it is a wonderful corridor of chalk" downland", supponing an excellent diversity of plant and butterfly species, including Dingy Skipper and Chalkhill Blue. Being the funhest northeast of all the Chalkhill Blue colonies in Britain, I had expected it to be rather weak, so I was pleasantly surprised by my visit on 4Aug00.

The afternoon proved rewarding, when I saw Chalkhill Blues in abundance on the Devil's Dyke just south of Newmarket.

(TL 615615) There were 48 males and 8 females in the first 200metres, and then I stopped counting. Mostly they were sharing the scabious with 6-spot burners, but some were on knapweed, and a favoured source was the low-growing carline thistle, which seemed to have most attraction when its purple had faded and the head was as dry as "everlasting flower" blooms. Some of the males were worn or damaged, but the majority were pristine, and were flying very actively, pursuing passing whites, other males, and courting the females. One pair were seen in cop.

It is very gratifying to find the the colony in such good health on the best sections of the Dyke. I found them flying in good numbers along most of the stretch south of the racecourse, and the males were also straying 50 metres into Suffolk, across the first strip of the racecourse to thesecondary ridge/ hedgeline, though there is much less horseshoe vetch here, and I only saw one female here. The habitat extends further north-west, but on this occasion I did not check the dyke beyond the Al I/AI4, returning instead to cross the Al304 for a look at the dyke running south-east towards Stretchworth. The quality of the habitat deteriorates at this point, where the dyke is lower, and I found no more Chalkhill Blues.

After about a kilometre, the south facing embankment again looks promising, and some conservation work has been done to clear the scrub and give the ground flora a chance. There is plenty of scabious, some horseshoe vetch, and there were good numbers of butterflies of other species. It would be nice to think that the colony might be able to extend in this direction at some time in the future.

A total of I 6 species were seen in a foray lasting an hour and a half, including Walls and one Brown Argus. On that occasion, the Common Blues had not arrived, which made it much easier to check the Chalkhill Blues. Perhaps we should plan a field meeting on the Devil's Dyke for the same time next year.

Being a hopeless optimist, I spent the following days making visits to 5 chalky sites in West Suffolk (and inside the recording area), but without finding a promising habitat, never mind the elusive Lysandra coridon!

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The Suffolk Argus

Butterflies at Ipswich Golf Club

by Neil Sherman, Conservation Officer for Ipswich Golf Club Ipswich Golf Club, a privately owned 27 hole course to the east oflpswich, may not immediately strike you as a haven for butterflies. Images of manicured turf and bunkers full of clean, white sand, so typical of the American courses seen on television may fill your mind. Yes, to an extent these exist, but take yourself away from the playing service to the land either side of the fairways - the rough. Over two thirds of this 250 acre site is thus designated, and is managed in a sympathetic way for all wildlife, including butterflies. 27 species have been recorded here (so far!).

The main habitat present is heathland, with its mosaic of heather, acid grassland and gorse. Species found here include the Silver-scudded Blue, a small colony of which can be found on the I 7'hfairway, right next door to Purdis Heath SSS! which has a very strong population.

Also found here are numerous Green Hairscreaks fluttering round the Gorse and Broom. Larvae can be found feeding on the young growth. Other heathland species include Grayling, Small Heath and the very common Small Copper. Some open areas of the heath have unfortunately been taken over by scrub oak trees, but a glance into the canopy in July and August should reveal the Purple Hairscreak,

6

October2000

which is very numerous here. One tree near the clubhouse was covered in them a few years ago: numbers have dropped back now.

Finding the butterflies at ground level is not unusual here: they are often knocked from the trees by the sprinkler system, or seen flying round lower branches in the afternoons. Last year (I 999) I found one on the ground on the 22 nd June, the earliest Suffolk record to dace.

Two species have colonised the site in recent years: the Brown Argus, which can be found in open grassy areas where Storksbill is present, and the Speckled Wood, which can now be found in most of the woodland areas on the site after the first records in 1998. The Brimstone is a very rare visitor here: in the 8 years I have been associated with the site I have only ever seen 3. Steps have been taken to rectify this by planting 50 buckthorn bushes under the 'Buckchorn for Brimstones' scheme. All plants have survived well, but no Brimstones have found them yet!

So you can see golf courses can be valuable wildlife habitats if managed appropriately. Hopefully we are setting an example to other clubs that golf and the environment can work in harmony for the good of all wildlife as well as butterflies.

by RobParker The Role of Species Re-introductions (Thoughts from the Suffolk Branch) 1. We believe in having a National/HQ Butterfly Conservation policy for reintroductions, and are generally happy with che present code, although a few minor observations are offered at Annex A. We wish HQ to play a role in advising other organisations on (or against) re-introductions in specific situations. We are ready to do likewise within Suffolk, following the same policy line.

2. We want to see increased butterfly diversiry in Suffolk, as well as greater numbers of the existing resident species.

We are presently monitoring the results of the Silver-studded blue "link-up" colony re-established at Aldringham Walks, but are not actively pursuing any fresh re-introduction programmes, though we are keen to strengthen populations and restore historic distribution patterns if the right circumstances can be found. We are in favour of habitat modification to encourage natural re-colonisation of "lost" species, but oppose attempts to introduce species which have never been recorded from the County.

Green Hairstreak

by DouglasHammersley

3. We would support properly planned reintroductions that meet reasonable criteria ofhaving a fair prospect of success,whether implemented by the Branch or by some other conservation organisation, provided that a licencewas obtained following due consultation with BC Conservation Office.

We unequivocallyoppose unlicenced releasesin circumstances that do not meet the guidelines.

Re-introductions

~-

4. We do not support the liberation of captive-bred stock by individuals attempting to strengthen a local population, but would prefer to know about such attempts, rather than to find that such individuals were making clandestine releases. We discourage such releases, but do not often get notification of advance intent.

5. This Branch has had recent experienceof A pre-planned release by another Wildlife organisation, made after consultation with us. In this case, Silver-scudded blues were established for a season or two at least, and we hope they will succeed, despite our earlier scepticism.Random sightings of non-resident species, such as Swallowtail and Marbled white, were probably the result of releases.As for the unexpected appearance, and probable breeding of Queen of Spain fritillaries at _.-= • - ~ _ Minsmere, we hope ,- • • • / ·• their arrival was natural, and will be ~ •' , •.; overjoyed if they 1 ~ 11''.,/ • • become properly ~ .~• established.

~J~

I

/".'. ,.,,, /i ~,:."'• • \\\

'\"-,_ • • • • • • • • • • •

\. "' Silver-studded Blue

by BerylJohnson

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The Suffolk Argus

6. Such experiences leave us ready to consider a flexible, optimistic approach to individual cases, despite our inherent resistance to "unnatural practice", and the problems that releases cause for recording. Turning to the 3 "exam questions" you posed: Responding to Enquiries. When enquiries are received about intended releases, we advise on the present ground rules (ie the BC Code}, explain why the practice is unlikely to be successful, and then seek to discourage the release, hopefully without losing contact with the enquiry. In the case of serious enquiries from SWf, RSPB etc, we would refer to BC Conservation Office to add weight to the Branch view.

Recording. Known, or suspected, releases are not accepted as County records, but are mentioned incidentally in accounts, if only to acknowledge that the insect was seen, and to anribute release as a more likely cause than natural colonisation.

The recording panel investigates unusual moth records, and often rejects them, but is mindful that the real impact on County records of a few unexplained sightings is not great.

Differences of Opinion. We find we have a good consensus of approval for re-introductions which meet the criteria of the code, and are licensed. The main differences within the Committee relate to how forcefully we should act against those who disregard the code. We accept that the County Recorders deserve a louder voice than others, since they have to live with the consequences of over-enthusiastic liberations. The whole process of airing the topic in comminee has been useful.

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Occober2000

7. These thoughts are a Committee view from the Suffolk Branch, drafted by the Chairman and incorporating input from all members.

Rob Parker Chairman, Suffolk BC

ANNEXA Comments on BC Policy and Code of Practice.

Terminology. The term "re-establishment" is perhaps technically better than "reintroduction" at describing the process we are discussing, but having defined it Uune 1995 Terminology), the Explanatory Notes do not use it consistently: In the title, it becomes the code on "Restoration".

In iii}, "introduction" is used.

In xii), failed "introductions" are referred to.

Also "the butterfly" is cited, and "the species" would be better, catering for moths too. If the code is to be re-written, consideration should be given to using reestablishment in preference to reintroduction, and all the terms used should be defined.

Creed. It can be argued that anyone joining Bunerfly Conservation should be enrolled on the understanding that they undertake to abide by the BC Code of Practice. Such an undertaking would encourage individuals to behave responsibly, and might be worth considering as a long-term objective.

• Of the bushes that died, we know some of the causes of death. Some were accidentally 'strimmed' {this happened on at least 3 sites), others suffered neglect. A few simply died.

• Of the bushes growing poorly, similar sons of fate befell these. Some bushes were simply struggling, even when their companions were doing well. Other bushes had been neglected or were fighting for survival amongst tall vegetation such as stinging nettles and long grass. A few, which had been growing on poor sandy soils, had been improperly mulched (if at all}, and were barely surviving.

Conclusions Things are looking good overall. Plenty of Buckthorn bushes have been planted and these are generally growing very well. Last year's successful egg-laying at Semer was unexpected because the bushes were shorter than the ideal height of 4 feet. It was also a real joy to behold at such an early stage of the initiative and serves to remind us all of the potential to make a real difference to biodiversity in our own small area. It is important that now we have considerable numbers planted, they are grown to their full potential. As we move into Spring all bushes should be pruned, weeded and mulched, ready for their new period of growth. Now it therefore a good time to remind everybody of Buckthorn maintenance and aftercare.

Program.m.e 2001

by Alan Johnson Some members have enquired about a Branch visit to the 'Large Blue Site' in Devon. As advised by Devon Branch the situation is that decisions about whether and where visits take place will be made later this year. Information will be published in 'Butterfly Conservation News', together with how applications should be made. My understanding is that bookings will need to be made individually and not as a group.

Any members who have suggestions for field trips for next year's programme please contact me -Alan Johnson on 01473 715701 as soon as possible after receipt of this edition of the 'Suffolk Argus'.

Suffolk Show 2000 Competition

Winner

Winner of the childrens' word search was Louise Palmer, of Ipswich, aged 10. She was sent a copy of the 'Lomond Guide to Butterflies' as a prize. Well done Louise.

Suffolk Branch of BC Website For those of you interested in looking at our website it can be found at the following address: www.irene.org.uk/butterflies/sbc.htm

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October 2000

The Suffolk Argus

Brin1stones

& Buckthorn:

2000 Update byJulian Dowding Greetings &om Ipswich. We have now finished our second season of planting Buckthorn for Brimstones. A combined 2year total of around 2000 bushes have been planted on about 200 sites, generally across the East of Suffolk. Whilst these plantings are mainly in gardens, a few farms and wildlife reserves have also planted Buckthorn as part of the initiative.

Last Summer, we contacted all 120 registered addresses to get feedback relating to the first 1000 bushes planted. Of these, 2/3 of our questionnaires were completed and returned to us. These form the basis of our survey. Thank-you to all those people who kindly returned questionnaires. The initial results were as follows:-

Results of 1998/99 Survey • Of801 bushes surveyed. 700 (87.5%), were either flourishing or growing reasonably well. The remainder of those surveyed (101 bushes), were either dead or growing poorly.

4

• Brimstones laid eggs on bushes at Semer, in the west of our target area. Eggs and larvae were photographed and also verified by Suffolk Branch of Butterfly Conservation. A robin ate most, but not all of the larvae.

• Brimstones were recorded in 5 other target gardens. 4 others were seen in the general area, one of these very early in the year, the others in Spring and Summer.

Of these 9 butterflies, only one was positively identified as a female. This was in a Stowmarket garden.

• Two further larvae were noted as being potential Brimstones. Both were green with a white lateral stripe and were found eating Buckthorn. One of these, at Heatherhayes, Ipswich, was very close to where an adult Brimstone was seen nectaring on sweet pea blossom in the Belstead Road area. This larvae was deemed improbable because it was too bright a green. The other, at Blaxall, disappeared before a second opinion could be given. Although these larvae were not positively identified, it is known that there are other caterpillars which eat Buckthorn. They also eat other plants and are termed 'polyphagous', ie, eat more than one foodplant. Brimstones eat only Buckthorn.

• From your replies, we learned of a few other creatures that eat Buckthorn.

These were, the Speckled Bush-Cricket, Leafcutter Bees (they don't actually eat it but cut perfect discs from the leaves for their nests), and deer. There are probably many others. The Holly Blue and Green Hairstreak are two other butterflies known to lay eggs on Buckthorn.

Review of two Butterfly videos

Small Skipper by DouglasHammersley A few years ago I was constantly grumbling about the lack of butterfly videos and wondering just how long it would be before someone produced one covering our British species. The situation is now much improved with, to my knowledge, seven commercially available. Three of these cover British species. The two under review complement each other in their purpose and approach and, if you can afford it, are both worth purchasing.

The first is The Beautiful Butterflies of the British Isles' filmed by Rodney M. Goodhand and produced by RMG Wildlife Videos. This covers 58 species, including

the Large Blue, and is divided into different habitats. With very few exceptions there is no attempt to discuss identification points though where appropriate several similar species follow each other i.e. Lulworth, Essex and Small Skipper. I did feel sometimes that a few words would help for example, early on, there is a shot of both male and female Brimstones, with no reference to colour differences. Each species is treated to a range of camera angles and some close-ups. The focus is on the adult butterfly and the commentary is helpful, though occasionally suspect, as in the stated distribution of the Brown Argus and Silverstudded Blue. The words 'usually' and 'probably' would have helped to improve some categorical statements that are open to question. The filming is particularly good and in focus - of many I enjoyed, the Chequered Skipper sequence is particularly memorable. A bonus is the inclusion of other wildlife scenes, such as a young fawn and fox cubs at play. As a portrayal of the varied beauty of our native butterflies it is excellent. My only major grumble, which is a matter of personal taste, concerns the accompanying music. It was ofi:en extremely repetitive and just not my 'scene'. In fact the odd sequence without it e.g. the Black Hairstreak section, was to me a blessing and ofi:en the well-recorded natural sounds were drowned in the process. You could always, if you know your species, tty it without the volume!

The second was on show at the recent AGM and such was the respnse that it has now gone on sale. 'British Butterflies - A Closer Look' made and produced by Kelvin Reel covers 57 species and the emphasis here is no just on the adult stages but also the full life cycle. To take just one species as an example, the Silver Washed Fritillary features the adult, V alezina female, ovipositing, egg, larva and pupa. This full

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The Suffolk Argus

sequence is not the case for all species but there is, with some, extra courtship footage.

Considering all of it was filmed outside, and at extremely close range, the focus factor is very good. It certainly gave me a new insight into the varied beaury of butterfly life in close-up, including several very close studies of wing scales. Grumbles include the order of species, which is roughly seasonal but not so definite in the last section. I would also have liked both male and female adults in all species, especially where they are different.

The main difference between the two is that the second has literally no sound in the form of commentary and no accompanying music, other than a brief snatch to accompany the 'Flight of Fancy' in slow motion which ends the tape. To compensate the sequence is fully outlined on the back of the cassette box and I found this easy to follow, though not necessarily for a beginner. Two other favourable sequnces involved 'metamorphosis' and each features a long study of the process.

Both also, unlike several recent advertised butterfly videos, give the video length and to me the first is worth purchasing for its comprehensive coverage and would suit a newcomer. The second is more specialised but equally relevant.

The Beautiful Butterflies of the British Isles' Length: 58 minutes Price: £12 plus £1.50 p&p.

From: R. M. Goodhand, 4, Courteny Close, Wareham, Dorset BH20 4ED.

British Butterflies - 'A Closer Look' Length: 72 minutes Price: £ 15 including p&p From: Kelvin Reel, Crestel, Cooling Street, Cliffe, Rochester, Kent ME3 7UB.

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October 2000

National

Editorial

Men1bers

by Richard Stewart

Day&AGM Regional Action Plans The National MembersDay and AGM are to be held on Saturday24"' Feb 2001 at the GreatHall ExeterUniversityin Devon.

There are threeconfirmed speakers; Dr JeremyThomas - the renowned Large Blue expert,Dr Jim Asherwho has pioneered the MillenniumAtlas for butterfliesand MartinWarren- BC's ConservationOfficer who hasan in-depthknowledgeof Devon's rarefritillaries.

At the AGM, which will be open from 10 am - 5 pm, there will be the normal variery of stalls with booksellers and wildlife societies amongst them.

The Devon Branch of Butterfly Conservation is planning the AGM to be part of a more major event. Following the AGM, and also at the Great Hall, Exeter; we are holding a wildlife barn dance between 8 and 11:30 pm. A lively band has been booked, a bar is available and the price of the ticket £12.50 also includes a varied buffet suitable for all culinary tastes. In addition we are planning a boat cruise of the Exe Estuary on Sunday 25'h February at approximately 10:30 am to see Avocets and other waders and wildfowl. Tickets for this will be £5 for the guided 2½ hour trip. A bar and refreshments will be available on the boat, which has an enclosed and heated area.

If you are interested in any of the ticketed events could you please contact Mr Ken Tyson on O1363 772261 or at 19 Okefield Rd, Crediton, EXl 7 2DL.

The BC Regional Action Plan for the Anglia Region has now been published. Our Suffolk contribution was compiled by James Mann and Tony Prichard. This was issued in 1999 and has now been incorporated into the Regional Plan, with those from two other BC Branches, Norfolk and Cambs/Essex. Tony and I had a number of telephone conversations with Jenny Joy, who masterminded the final document and our Chairman, Rob Parker, was present at the official House of Commons launch on 26'h. June 2000. The 154 page document gives detailed accounts and Action Plans for a wide range of moths and butterflies, with emphasis on 34 high prioriry moths and 6 butterflies. I shall be attending a weekend BC national seminar on implementing these plans, in September at Winchester, and they will be discussed at our next Committee meeting. The 20 copies our Branch is allocated willgo to Committee members and organisations we work with, but other copies are available, price £15, from the Conservation Office in Dorset.

BC Dedham Office As those who heard David Bridges talking at our Spring AGM will know, the Dedham Office will cease to exist at the end of this year and a new one will be created in Dorset.

This making logistical sense but we in Suffolk will sadly miss our 'local' office, set up originally by Andrew Phillips about a decade ago. The team at Dedham has been a wonderful asset for BC and I have always found them extremely helpful and willing to

give me details of anything I want: if they don't know you usually get a call back within a few minutes. Graham Bull, and his wife, have been particularly useful in liaising with the Dedham office and we shall particularly miss being able to easily book, pick up and return the visual display unit. Deborah and Karen have been our main contacts and both were unable to agree to relocation, so they will not be part of the new team. Thankyou ladies-and the occasional man-for being such wonderful ambassadors for Bunerfly Conservation and we send our good wishes in the future.

Committee changes Those particularly observant will notice the absence of Richard Champion from our Committee. He has now resigned and this is a sad loss, as he was recently appointed ro be the Conservation Officer for BC in his part of Suffolk. His contribution in the last few years has been considerable, particularly recording in some of the less visited areas around his base at Aspal Close, Mildenhall. Some members will have particularly vivid memories of all those White Admirals in the sunlit clearings of Mildenhall Wood earlier this year. We hope Richard will carry on his detailed recording and possibly feel he can return to the Committee at some future date.

Articles for the Suffolk Argus If any members have articles for future editions of the Suffolk Argus could they please send them to Paul Gilson at 18 Cheltenham Avenue, Ipswich IP1 4LN: Myself and Richard Stewart will be overseeing the production of the newsletter until a new Editor is found.

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The Suffolk Argus

October 2000

Contents Editorial ...............................................................................

3

Newsletter Details

Copy Dates Contributions for our newsletter should reach the Editor (address on back page) no later than: February

Brimstones and Buckthorn: 2000 Update ...................... 4-5 Programme 2001 .................................................................

5

Butterflies at Ipswich Golf Club .......................................... 6 Chalkhill Blues on the Devil's Dyke ................................... 7

2000 Field Trips ............................................................

8-16

Cleopatras and Swallowtails ...............................................

17

So what now, fellow butterfly watchers? ............................ 1 8 Re-introductions ..........................................................

June October

19-20

Review of two butterfly videos ..................................... 21-22 National Members Day and AGM .................................... 22 Newsletter Details & General Information ....................... 23 Suffolk Branch Contacts ........................................ Back Cover

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The Suffolk Argus is your magazine, so please let us hear from you.

n.Suffolk Argus Please contact:

Paul Gilson (01473 253276)

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Suffolk Branch Contacts

Chairman

Rob Parker, 66 Cornfield Road, Bury St. Edmunds, Suffolk IP33 3BN (01284 705476) Membership Secretary Paul Gilson, 18 Cheltenham Avenue, Ipswich, Suffolk IP! 4LN (01473 253276) Newsletter Editors (temporary) Paul Gilson (address as above}

Richard Stewart, 'Valczina', 112 Westerfield Road, Ipswich, Suffolk !PI 2XW (01473 216518) Publicity Officer (Vacant) Programme Secretary

Alan Johnson, 28 Medway Road, Ipswich,

Volunteers Needed If you feel you could help out now and then with the growing work of the Branch, please contact Paul Gilson on

01473253276.

Suffolk IP3 0QH (01473 715701) County Recorder (Butterflies) Richard Stewart, (address as above) Conservation Officers (Butterflies) RichardStewart, Ease Suffolk (address as above) Rob Parker, Central/West Suffolk (addressas above) Conservation Officer (Moths) Tony Prichard,3 Powling Road, Ipswich, Suffolk, IP3 9JR (01473 270047) County Recorders (Moths)

Jon Nicholls, 18 Berners Road, Felixstowe, Suffolk !Pll

7LF (01394 271500)

Tony Prichard(address as above} Secretary

Tony Prichard, (address as above} Treasurer

GrahamBull, Willow Cottage, I The Street, Raydon, Suffolk IP7 5LP (01473 310371)

Published by the Suffolk Branch of Butterfly Conservation (The British Butterfly Conservation Society Ltd.) Reg. No. 2206468 Reg. Charity No. 254937 Head Offia:: P.O. Box 222. Dedham, EssexCO?6EY. Td. (01206) 322342 Edited by Pa11/Gilsond- RichardStewart L>go (Silv.r-studdcd Blue) Dou1 Hammmky Designed andprodua:d by Suphm Ion, Cat d-Moutt d,sip © 2000 all rights reserved

Committee Members BerylJohnson, 28 Medway Road, Ipswich, Suffolk IP3 0QH (01473 715701)

Stella Wolfe

October 2000 • • • • • • • • • • • •

Brimstone by BerylJohnson

President

Howard Mendel, clo The Natural History

The Newsletter of the Suffolk Branch of Butterfly Conservation

Museum, Cromwell Road, London, SW7 5BO (0171 938 8782) BUTTERFLY CONSERVATION

Volume21

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