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The site was identified as important in 2004 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Tundra Swan Cygnus columbianus	LC	breeding	1998	frequent	A3
Brent Goose Branta bernicla	LC	breeding	1998	present	A3
Red-breasted Goose Branta ruficollis	VU	breeding	1998	1,000 individuals	A1, A3, A4i
Bean Goose Anser fabalis	LC	passage	1998	5,000-12,000 individuals	A4i
Lesser White-fronted Goose Anser erythropus	VU	passage	1998	500-5,000 individuals	A1, A4i
Long-tailed Duck Clangula hyemalis	VU	breeding	1998	abundant	A3
King Eider Somateria spectabilis	LC	breeding	1998	uncommon	A3
Steller's Eider Polysticta stelleri	VU	breeding	1998	frequent	A3
Greater Scaup Aythya marila	LC	breeding	1998	uncommon	A3
Yellow-billed Loon Gavia adamsii	NT	breeding	1998	uncommon	A3
Grey Plover Pluvialis squatarola	VU	breeding	1998	frequent	A3
Pacific Golden Plover Pluvialis fulva	LC	breeding	1998	common	A3
Bar-tailed Godwit Limosa lapponica	NT	breeding	1998	frequent	A3
Ruddy Turnstone Arenaria interpres	NT	breeding	1998	common	A3
Curlew Sandpiper Calidris ferruginea	VU	breeding	1998	uncommon	A3
Temminck's Stint Calidris temminckii	LC	breeding	1998	uncommon	A3
Dunlin Calidris alpina	NT	breeding	1998	abundant	A3
Little Stint Calidris minuta	LC	breeding	1998	abundant	A3
Pectoral Sandpiper Calidris melanotos	LC	breeding	1998	abundant	A3
Red-necked Phalarope Phalaropus lobatus	LC	breeding	1998	frequent	A3
Spotted Redshank Tringa erythropus	LC	breeding	1998	frequent	A3
Ross's Gull Rhodostethia rosea	LC	breeding	1998	frequent	A3
Glaucous Gull Larus hyperboreus	LC	breeding	1998	frequent	A3
Arctic Tern Sterna paradisaea	LC	breeding	1998	common	A3
Long-tailed Jaeger Stercorarius longicaudus	LC	breeding	1998	abundant	A3
Snowy Owl Bubo scandiacus	VU	breeding	1998	common	A3
Red-throated Pipit Anthus cervinus	LC	breeding	1998	frequent	A3
Lapland Longspur Calcarius lapponicus	LC	breeding	1998	abundant	A3
Snow Bunting Plectrophenax nivalis	LC	breeding	1998	frequent	A3

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2004) may differ.

Habitat1	Habitat detail	% of IBA
Grassland	Tundra	major (>10)
Wetlands (inland)		-

1. IUCN Habitat classification.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Gusikha river basin and lower Balakhnya river (Russia (Asian)). Downloaded from https://datazone.birdlife.org/site/factsheet/gusikha-river-basin-and-lower-balakhnya-river-iba-russia-(asian) on 22/11/2024.