The site was identified as internationally important for bird conservation in 2009 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 |
Greylag Goose Anser anser |
LC |
passage (1994) |
6,500–9,000 birds |
A4i, B1i, C3 |
Greater White-fronted Goose Anser albifrons |
LC |
passage (1994) |
3,000–12,500 birds |
A4i, B1i, C3 |
Red-crested Pochard Netta rufina |
LC |
breeding (1997–2005) |
25 pairs |
A4i, B1i, C3 |
Ferruginous Duck Aythya nyroca |
NT |
breeding (1997–2005) |
2–6 pairs |
C6 |
Northern Shoveler Spatula clypeata |
LC |
breeding (1997–2005) |
28–217 pairs |
B2 |
Gadwall Mareca strepera |
LC |
breeding (1997–2005) |
27–132 pairs |
A4i, B1i, B2, C3 |
Spotted Crake Porzana porzana |
LC |
breeding (1997–2005) |
10–250 males |
C6 |
White Stork Ciconia ciconia |
LC |
breeding (2000–2002) |
11–18 pairs |
C6 |
Eurasian Bittern Botaurus stellaris |
LC |
breeding (1997) |
20–25 pairs |
C6 |
Common Little Bittern Ixobrychus minutus |
LC |
breeding (1994) |
3–5 pairs |
C6 |
Great White Egret Ardea alba |
LC |
breeding (1998–2001) |
11–31 pairs |
C6 |
Pied Avocet Recurvirostra avosetta |
LC |
breeding (1998–2004) |
120–195 pairs |
C6 |
Black-winged Stilt Himantopus himantopus |
LC |
breeding (1997–2005) |
10–25 pairs |
C6 |
Kentish Plover Charadrius alexandrinus |
LC |
breeding (2001–2004) |
24–37 pairs |
C6 |
Northern Lapwing Vanellus vanellus |
NT |
breeding (2001–2004) |
274–554 pairs |
B2 |
Mediterranean Gull Larus melanocephalus |
LC |
breeding (1997–2006) |
10–36 pairs |
C6 |
Common Tern Sterna hirundo |
LC |
breeding (1994) |
50–60 pairs |
C6 |
Short-eared Owl Asio flammeus |
LC |
resident (2000–2005) |
4 pairs |
C6 |
Western Marsh-harrier Circus aeruginosus |
LC |
breeding (1995–2005) |
25–35 pairs |
C6 |
Montagu's Harrier Circus pygargus |
LC |
breeding (1997–2005) |
4–7 pairs |
C6 |
White-tailed Sea-eagle Haliaeetus albicilla |
LC |
resident (2002) |
1 pairs |
C6 |
Barred Warbler Curruca nisoria |
LC |
breeding (1997–2005) |
20–40 pairs |
C6 |
A4iii Species group - waterbirds |
n/a |
passage (1994) |
20,000-49,999 birds |
A4iii, C4 |