The site was identified as important in 2021 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 |
Brent Goose Branta bernicla |
LC |
winter |
2012 |
5,635 individuals |
B3a |
Surf Scoter Melanitta perspicillata |
LC |
winter |
2013 |
4,572 individuals |
B3a |
Clark's Grebe Aechmophorus clarkii |
LC |
- |
2012 |
190 individuals |
A4, B3a |
Reddish Egret Egretta rufescens |
NT |
resident |
2011 |
476 individuals |
A4, B1a, B3a |
Double-crested Cormorant Nannopterum auritum |
LC |
resident |
2013 |
4,210 individuals |
B3a |
Brandt's Cormorant Urile penicillatus |
LC |
resident |
2014 |
7,000 individuals |
A4, B3a |
Grey Plover Pluvialis squatarola |
VU |
non-breeding |
2013 |
9,797 individuals |
A4, B3a |
Wilson's Plover Charadrius wilsonia |
LC |
resident |
2018 |
75 individuals |
A4, B3a |
Snowy Plover Charadrius nivosus |
NT |
resident |
2013 |
783 individuals |
A4, B1a, B3a |
Whimbrel Numenius phaeopus |
LC |
winter |
2011 |
612 individuals |
B3a |
Long-billed Curlew Numenius americanus |
LC |
non-breeding |
2011 |
1,416 individuals |
A4, B3a |
Marbled Godwit Limosa fedoa |
VU |
non-breeding |
2013 |
81,225 individuals |
A4, B3a |
Red Knot Calidris canutus |
NT |
winter |
2012 |
2,860 individuals |
B1a, B3a |
Dunlin Calidris alpina |
NT |
winter |
2011 |
11,916 individuals |
B3a |
Western Sandpiper Calidris mauri |
LC |
non-breeding |
2013 |
103,808 individuals |
B3a |
Short-billed Dowitcher Limnodromus griseus |
VU |
non-breeding |
2016 |
14,939 individuals |
A4, B3a |
Red-necked Phalarope Phalaropus lobatus |
LC |
- |
2016 |
92,506 individuals |
A4, B3a |
Willet Tringa semipalmata |
LC |
non-breeding |
2011 |
10,485 individuals |
A4, B3a |
Black Skimmer Rynchops niger |
LC |
winter |
2011 |
336 individuals |
B3a |
Bonaparte's Gull Larus philadelphia |
LC |
passage |
2011 |
5,000 individuals |
A4, B3a |
Heermann's Gull Larus heermanni |
NT |
resident |
2012 |
439 individuals |
B1a |
Least Tern Sternula antillarum |
LC |
breeding |
2011 |
220 individuals |
B3a |
Common Gull-billed Tern Gelochelidon nilotica |
LC |
breeding |
2011 |
81 individuals |
B3a |
Elegant Tern Thalasseus elegans |
NT |
non-breeding |
2011 |
200 individuals |
B1a |
Royal Tern Thalasseus maximus |
LC |
resident |
2011 |
7,500 individuals |
A4, B3a |
A4iii Species group - waterbirds |
n/a |
non-breeding |
2011-2018 |
218,892 individuals |
B3b |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2021) may differ.
1.