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The site was identified as internationally important for bird conservation 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 List	Season (year/s of estimate)	Size	IBA criteria
Tundra Swan Cygnus columbianus	LC	passage (1999)	3,500 birds	A4i
Brent Goose Branta bernicla	LC	breeding (1999)	uncommon	A3
Greater White-fronted Goose Anser albifrons	LC	breeding (1999)	frequent	A3
Lesser White-fronted Goose Anser erythropus	VU	passage (1999)	rare	A1
Long-tailed Duck Clangula hyemalis	VU	breeding (1999)	abundant	A3
Spectacled Eider Somateria fischeri	NT	breeding (1999)	frequent	A3
King Eider Somateria spectabilis	LC	breeding (1999)	frequent	A3
Steller's Eider Polysticta stelleri	VU	passage (1999)	frequent	A4i
Greater Scaup Aythya marila	LC	breeding (1999)	common	A3
Baikal Teal Sibirionetta formosa	LC	breeding (1999)	rare	A1
Northern Pintail Anas acuta	LC	breeding (1999)	abundant	A4i
Siberian Crane Leucogeranus leucogeranus	CR	passage (1999)	rare	A1
Sandhill Crane Grus canadensis	LC	passage (1999)	abundant	A4i
Yellow-billed Loon Gavia adamsii	NT	breeding (1999)	common	A3
Grey Plover Pluvialis squatarola	VU	breeding (1999)	common	A3
Sharp-tailed Sandpiper Calidris acuminata	VU	breeding (1999)	frequent	A3
Temminck's Stint Calidris temminckii	LC	breeding (1999)	abundant	A3
Dunlin Calidris alpina	NT	breeding (1999)	common	A3
Pectoral Sandpiper Calidris melanotos	LC	breeding (1999)	common	A3
Red-necked Phalarope Phalaropus lobatus	LC	breeding (1999)	abundant	A3
Red Phalarope Phalaropus fulicarius	LC	breeding (1999)	abundant	A3
Spotted Redshank Tringa erythropus	LC	breeding (1999)	common	A3
Ross's Gull Rhodostethia rosea	LC	breeding (1999)	common	A3, A4i
Glaucous Gull Larus hyperboreus	LC	breeding (1999)	common	A3
Arctic Tern Sterna paradisaea	LC	breeding (1999)	common	A3
Long-tailed Jaeger Stercorarius longicaudus	LC	breeding (1999)	common	A3
Arctic Jaeger Stercorarius parasiticus	LC	breeding (1999)	common	A3
Snowy Owl Bubo scandiacus	VU	breeding (1999)	frequent	A3
Rough-legged Buzzard Buteo lagopus	LC	breeding (1999)	frequent	A3
Gyrfalcon Falco rusticolus	LC	breeding (1999)	1 pairs	A3

Year	Protected Area	Designation (management category)	% coverage of IBA
-	Chukoche Lake	Protected Landscape (V)	1
1982	Chajgurgino	Zakaznik (IV)	66
2002	Kolyma-Koren	Resource Reserve (VI)	50

Habitat	% of IBA	Habitat detail
Grassland	major (>10)	Tundra
Marine Coastal/Supratidal	major (>10)
Marine Neritic	major (>10)
Wetlands (inland)	major (>10)	Rivers and streams; Freshwater lakes and pools

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Kolyma delta (Russia (Asian)). Downloaded from https://datazone.birdlife.org/site/factsheet/kolyma-delta-iba-russia-(asian) on 22/12/2024.