Herring Gull

(a) Low tide (b) Rising tide

Figure 3-123. Proportion of foraging and roosting Larus hyperboreus/glaucoides during weekly (a) low tide and (b) rising tide estuarine surveys in six subsites in the Andakíll Ramsar site between 12th March and 25th October 2017.

Herring Gull

Larus argentatus Silfurmáfur

Small numbers of Herring Gulls (< 10) were present in the survey area in spring and autumn, and were absent between late-May and September.

Number of individuals 10 8 6 4 2 0 Low-tide Rising-tide

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 Mar Apr May Jun Jul Aug Sep Oct Week number and month

Figure 3-124. Number of Larus argentatus recorded during weekly low tide and rising tide estuarine surveys in the Andakíll Ramsar site between 12th March and 25th October 2017.

(a) Low tide (b) Rising tide

Figure 3-125. Relative abundance of Larus argentatus during weekly (a) low tide and (b) rising tide estuarine surveys in the Andakíll Ramsar site between 12th March and 25th October 2017. Dots are randomly positioned within each subsite. While each dot refers to a single bird, it refers to the bird’s presence in that subsite only, and not the bird’s actual location.

Figure 3-126. Proportion of foraging and roosting Larus argentatus during weekly (a) low tide and (b) rising tide estuarine surveys in six subsites in the Andakíll Ramsar site between 12th March and 25th October 2017.

(a) Low tide (b) Rising tide