The site was identified as internationally important for bird conservation in 1994 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 |
White-headed Duck Oxyura leucocephala |
EN |
winter (1977–1992) |
2–27 birds |
A1 |
Lesser White-fronted Goose Anser erythropus |
VU |
winter (1970–1977) |
359 birds |
A1, A4i, B1i, B2 |
Red-crested Pochard Netta rufina |
LC |
winter (1970–1977) |
4,435 birds |
A4i, B1i |
Common Pochard Aythya ferina |
VU |
winter (1977–1992) |
3,000–4,840 birds |
A4i, B1i |
Ferruginous Duck Aythya nyroca |
NT |
passage (1977) |
185 birds |
A1, B1i, B2 |
Tufted Duck Aythya fuligula |
LC |
winter (1970–1977) |
2,000 birds |
A4i, B1i |
Northern Shoveler Spatula clypeata |
LC |
winter (1970–1977) |
25,000 birds |
A4i, B1i |
Gadwall Mareca strepera |
LC |
winter (1970–1977) |
16,200 birds |
A4i, B1i |
Eurasian Wigeon Mareca penelope |
LC |
winter (1970–1977) |
32,300 birds |
A4i, B1i |
Mallard Anas platyrhynchos |
LC |
winter (1970–1977) |
12,850 birds |
A4i, B1i |
Northern Pintail Anas acuta |
LC |
winter (1970–1977) |
20,400 birds |
A4i, B1i |
Common Teal Anas crecca |
LC |
winter (1970–1977) |
86,000 birds |
A4i, B1i |
Eurasian Coot Fulica atra |
LC |
winter (1970–1977) |
34,550 birds |
A4i, B1i |
Squacco Heron Ardeola ralloides |
LC |
breeding (1977) |
250 pairs |
B1i |
Cattle Egret Bubulcus ibis |
LC |
passage (1977) |
120 birds |
B1i |
Little Egret Egretta garzetta |
LC |
passage (1977) |
300 birds |
B1i |
Pygmy Cormorant Microcarbo pygmaeus |
LC |
winter (1970–1977) |
100 birds |
A1, B2 |
Northern Lapwing Vanellus vanellus |
NT |
winter (1970–1977) |
1,000 birds |
A4i, B1i |
Black-tailed Godwit Limosa limosa |
NT |
passage (1977) |
500 birds |
B1i |
Little Gull Hydrocoloeus minutus |
LC |
winter (1977) |
400 birds |
B1i |
Whiskered Tern Chlidonias hybrida |
LC |
breeding (1977) |
150–200 pairs |
B1i |
A4iii Species group - waterbirds |
n/a |
winter (1970–1977) |
100,000-499,999 birds |
A4iii |