The site was identified as important in 2000 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Species |
Red List1 |
Season |
Year(s) |
Size |
IBA criteria |
Mute Swan Cygnus olor |
LC |
passage |
1992 |
2,000-5,000 individuals |
A4i, B1i |
Greylag Goose Anser anser |
LC |
winter |
1992 |
10,000-12,000 individuals |
A4i, B1i |
Greater White-fronted Goose Anser albifrons |
LC |
passage |
1992 |
25,000-40,000 individuals |
A4i, B1i |
Smew Mergellus albellus |
LC |
winter |
1992 |
5,000-12,000 individuals |
A4i, B1i |
Greater Scaup Aythya marila |
LC |
winter |
1992 |
80,000-100,000 individuals |
A4i, B1i |
Mallard Anas platyrhynchos |
LC |
winter |
1992 |
25,000-30,000 individuals |
B1i |
Great Crested Grebe Podiceps cristatus |
LC |
passage |
1992 |
5,000-12,000 individuals |
A4i, B1i |
Black-necked Grebe Podiceps nigricollis |
LC |
passage |
1992 |
5,000-10,000 individuals |
A4i, B1i |
Grey Heron Ardea cinerea |
LC |
passage |
1999 |
4,500-6,000 individuals |
A4i, B1i |
Purple Heron Ardea purpurea |
LC |
passage |
1999 |
700-750 individuals |
B2 |
Great White Egret Ardea alba |
LC |
passage |
1999 |
800-1,000 individuals |
A4i, B1i |
Great Cormorant Phalacrocorax carbo |
LC |
breeding |
1992 |
1,000-3,000 breeding pairs |
A4i, B1i |
Pied Avocet Recurvirostra avosetta |
LC |
breeding |
1992 |
50-250 breeding pairs |
B1i, B3 |
Collared Pratincole Glareola pratincola |
LC |
passage |
1999 |
400-600 individuals |
A4i, B1i |
Caspian Gull Larus cachinnans |
LC |
breeding |
1992 |
4,000-5,500 breeding pairs |
A4i, B1i |
A4iii Species group - waterbirds |
n/a |
winter |
1992 |
100,000-499,999 individuals |
A4iii |
A4iii Species group - waterbirds |
n/a |
passage |
1992 |
50,000-99,999 individuals |
A4iii |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2000) may differ.
1.