The site was identified as internationally important for bird conservation in 2016 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Species |
Red List |
Season (year[s] of estimate) |
Size |
IBA criteria |
Whooper Swan Cygnus cygnus |
LC |
non-breeding (2011–2015) |
73–104 birds |
C6 |
Whooper Swan Cygnus cygnus |
LC |
winter (2011–2015) |
68 birds |
B3 |
Tundra Swan Cygnus columbianus |
LC |
non-breeding (2011–2015) |
269–361 birds |
B1i, C2 |
Tundra Swan Cygnus columbianus |
LC |
winter (2011–2015) |
208 birds |
B2 |
Brent Goose Branta bernicla |
LC |
non-breeding (2011–2015) |
84,852–97,566 birds |
A4i, B1i, C3 |
Barnacle Goose Branta leucopsis |
LC |
non-breeding (2011–2015) |
177,278–197,072 birds |
A4i, B1i, C2, C6 |
Barnacle Goose Branta leucopsis |
LC |
winter (2011–2015) |
57,633 birds |
B3 |
Greylag Goose Anser anser |
LC |
non-breeding (2011–2015) |
29,502–32,877 birds |
A4i, B1i, C3 |
Bean Goose Anser fabalis |
LC |
non-breeding (2011–2015) |
7,101–10,392 birds |
B1i, C3 |
Common Eider Somateria mollissima |
NT |
breeding (2011–2015) |
3,207–3,236 pairs |
B2 |
Common Eider Somateria mollissima |
NT |
non-breeding (2011–2015) |
95,324–110,904 birds |
A4i, B1i, C3 |
Velvet Scoter Melanitta fusca |
VU |
non-breeding (2011–2015) |
61–163 birds |
A1, C1 |
Red-breasted Merganser Mergus serrator |
LC |
winter (2011–2015) |
336 birds |
B2 |
Common Shelduck Tadorna tadorna |
LC |
non-breeding (2011–2015) |
119,367–165,851 birds |
A4i, B1i, C3 |
Common Pochard Aythya ferina |
VU |
non-breeding (2011–2015) |
1,280 birds |
A1, C1 |
Greater Scaup Aythya marila |
LC |
non-breeding (2011–2015) |
36,440–86,439 birds |
A4i, B1i, C3 |
Greater Scaup Aythya marila |
LC |
winter (2011–2015) |
7,684 birds |
B2 |
Northern Shoveler Spatula clypeata |
LC |
non-breeding (2011–2015) |
2,268–3,229 birds |
B1i, C3 |
Eurasian Wigeon Mareca penelope |
LC |
non-breeding (2011–2015) |
88,714–118,975 birds |
A4i, B1i, C3 |
Eurasian Wigeon Mareca penelope |
LC |
winter (2011–2015) |
56,572 birds |
B3 |
Northern Pintail Anas acuta |
LC |
non-breeding (2011–2015) |
21,145–30,172 birds |
B1i, C3 |
Common Teal Anas crecca |
LC |
non-breeding (2011–2015) |
20,098–26,089 birds |
B1i, C3 |
Common Loon Gavia immer |
LC |
non-breeding (2011–2015) |
2 birds |
C6 |
Eurasian Spoonbill Platalea leucorodia |
LC |
breeding (2011–2015) |
776–881 pairs |
A4i, B1i, B3, C2, C6 |
Eurasian Spoonbill Platalea leucorodia |
LC |
non-breeding (2011–2015) |
2,545–3,210 birds |
A4i, B1i, C2, C6 |
Little Egret Egretta garzetta |
LC |
breeding (2011–2015) |
3–4 pairs |
C6 |
Little Egret Egretta garzetta |
LC |
non-breeding (2011–2015) |
70–122 birds |
C6 |
Eurasian Oystercatcher Haematopus ostralegus |
NT |
breeding (2011–2015) |
2,068–2,771 pairs |
B2 |
Eurasian Oystercatcher Haematopus ostralegus |
NT |
non-breeding (2011–2015) |
135,609–144,263 birds |
A4i, B1i, C3 |
Eurasian Oystercatcher Haematopus ostralegus |
NT |
winter (2011–2015) |
130,227 birds |
B2 |
Pied Avocet Recurvirostra avosetta |
LC |
breeding (2011–2015) |
1,265–1,430 pairs |
A4i, B1i, C2, C6 |
Pied Avocet Recurvirostra avosetta |
LC |
non-breeding (2011–2015) |
18,670–30,438 birds |
A4i, B1i, C2, C6 |
Grey Plover Pluvialis squatarola |
VU |
non-breeding (2011–2015) |
56,008–60,186 birds |
A4i, B1i, C3 |
Eurasian Golden Plover Pluvialis apricaria |
LC |
non-breeding (2011–2015) |
41,701–53,001 birds |
A4i, B1i, C2, C6 |
Eurasian Golden Plover Pluvialis apricaria |
LC |
winter (2011–2015) |
17,406 birds |
B3 |
Common Ringed Plover Charadrius hiaticula |
LC |
non-breeding (2011–2015) |
9,430–13,148 birds |
B1i, C3 |
Common Ringed Plover Charadrius hiaticula |
LC |
breeding (2011–2015) |
41–45 pairs |
B3 |
Kentish Plover Charadrius alexandrinus |
LC |
non-breeding (2011–2015) |
21–28 birds |
C6 |
Northern Lapwing Vanellus vanellus |
NT |
winter (2011–2015) |
19,825 birds |
B2 |
Eurasian Curlew Numenius arquata |
NT |
non-breeding (2011–2015) |
119,918–131,481 birds |
A4i, B1i, C3 |
Eurasian Curlew Numenius arquata |
NT |
winter (2011–2015) |
108,557 birds |
B2 |
Bar-tailed Godwit Limosa lapponica |
NT |
non-breeding (2011–2015) |
145,309–180,739 birds |
A4i, B1i, C3, C6 |
Black-tailed Godwit Limosa limosa |
NT |
non-breeding (2011–2015) |
3,096 birds |
B1i, B2, C3 |
Ruddy Turnstone Arenaria interpres |
NT |
non-breeding (2011–2015) |
3,869–4,808 birds |
B1i, C3 |
Red Knot Calidris canutus |
NT |
non-breeding (2011–2015) |
146,438–267,552 birds |
A4i, B1i, C3 |
Curlew Sandpiper Calidris ferruginea |
VU |
non-breeding (2011–2015) |
4,059–6,892 birds |
B1i, C3 |
Sanderling Calidris alba |
LC |
non-breeding (2011–2015) |
18,590–26,238 birds |
A4i, B1i, C3 |
Dunlin Calidris alpina |
NT |
non-breeding (2011–2015) |
343,450–373,679 birds |
A4i, B1i, C3 |
Spotted Redshank Tringa erythropus |
LC |
non-breeding (2011–2015) |
2,893–4,238 birds |
A4i, B1i, C3 |
Common Greenshank Tringa nebularia |
LC |
non-breeding (2011–2015) |
6,673 birds |
B1i, C3 |
Common Redshank Tringa totanus |
LC |
breeding (2011–2015) |
755–1,081 pairs |
B3 |
Common Redshank Tringa totanus |
LC |
non-breeding (2011–2015) |
31,644 birds |
A4i, B1i, C3 |
Common Redshank Tringa totanus |
LC |
winter (2011–2015) |
8,162 birds |
B2 |
Black-headed Gull Larus ridibundus |
LC |
breeding (2011–2015) |
31,390–37,118 pairs |
A4i, B1i, B3, C3 |
Black-headed Gull Larus ridibundus |
LC |
non-breeding (2011–2015) |
156,585–212,781 birds |
A4i, B1i, C3 |
Mew Gull Larus canus |
LC |
breeding (2011–2015) |
779–905 pairs |
B3 |
Mew Gull Larus canus |
LC |
non-breeding (2011–2015) |
58,313–82,306 birds |
A4i, B1i, C3 |
Lesser Black-backed Gull Larus fuscus |
LC |
breeding (2011–2015) |
18,191–18,545 pairs |
A4i, B1i, B3, C3 |
Lesser Black-backed Gull Larus fuscus |
LC |
non-breeding (2011–2015) |
min 16,974 birds |
A4i, B1i, C3 |
European Herring Gull Larus argentatus |
LC |
breeding (2011–2015) |
9,712–12,297 pairs |
A4i, B1i, B2, C3 |
European Herring Gull Larus argentatus |
LC |
non-breeding (2011–2015) |
46,954–59,346 birds |
A4i, B1i, C3 |
Great Black-backed Gull Larus marinus |
LC |
breeding (2011–2015) |
21–25 pairs |
B3 |
Little Tern Sternula albifrons |
LC |
breeding (2011–2015) |
121–146 pairs |
B1i, C6 |
Little Tern Sternula albifrons |
LC |
non-breeding (2011–2015) |
min 373 birds |
B1i, C2, C6 |
Black Tern Chlidonias niger |
LC |
non-breeding (2011–2015) |
3,730–6,000 birds |
C6 |
Common Tern Sterna hirundo |
LC |
breeding (2011–2015) |
2,135–2,346 pairs |
C2 |
Common Tern Sterna hirundo |
LC |
non-breeding (2011–2015) |
2,443 birds |
C6 |
Arctic Tern Sterna paradisaea |
LC |
breeding (2011–2015) |
820–880 pairs |
C6 |
Sandwich Tern Thalasseus sandvicensis |
LC |
breeding (2011–2015) |
6,065–11,987 pairs |
A4i, B1i, B3, C2, C6 |
Short-eared Owl Asio flammeus |
LC |
breeding (2011–2015) |
10–14 pairs |
C6 |
Western Marsh-harrier Circus aeruginosus |
LC |
breeding (2011–2015) |
42–48 pairs |
C6 |
White-tailed Sea-eagle Haliaeetus albicilla |
LC |
non-breeding (2011–2015) |
4–6 birds |
C6 |
Peregrine Falcon Falco peregrinus |
LC |
breeding (2011–2015) |
1 pairs |
C6 |
Peregrine Falcon Falco peregrinus |
LC |
non-breeding (2011–2015) |
81–94 birds |
C6 |
A4iii Species group - waterbirds |
n/a |
non-breeding (2011–2015) |
1,416,247–1,599,042 birds |
A4iii, C4 |