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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
Whooper Swan Cygnus cygnus	LC	passage	1997	present	A4i
Swan Goose Anser cygnoid	EN	breeding	2004	present	A1
Bean Goose Anser fabalis	LC	passage	1997	present	A4i
Greater White-fronted Goose Anser albifrons	LC	passage	1997	present	A4i
Lesser White-fronted Goose Anser erythropus	VU	passage	1997	present	A1
Siberian Scoter Melanitta stejnegeri	LC	passage	1997	present	A4i
Red-breasted Merganser Mergus serrator	LC	passage	1997	present	A4i
Harlequin Duck Histrionicus histrionicus	LC	passage	1997	present	A4i
Tufted Duck Aythya fuligula	LC	passage	1997	present	A4i
Baikal Teal Sibirionetta formosa	LC	passage	1997	present	A1
Falcated Duck Mareca falcata	LC	passage	1997	present	A4i
Red-throated Loon Gavia stellata	LC	passage	1997	present	A4i
Arctic Loon Gavia arctica	LC	passage	1997	present	A4i
Charadrius mongolus	NR	passage	1997	present	A4i
Little Curlew Numenius minutus	LC	passage	1997	present	A4i
Black-tailed Godwit Limosa limosa	NT	passage	1997	present	A4i
Red Knot Calidris canutus	NT	passage	1997	present	A4i
Spoon-billed Sandpiper Calidris pygmaea	CR	passage	1997	present	A1
Spotted Redshank Tringa erythropus	LC	passage	1997	present	A4i
Spotted Greenshank Tringa guttifer	EN	breeding	1997	present	A1
Steller's Sea-eagle Haliaeetus pelagicus	VU	resident	1997	present	A1

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

Year	Protected Area	Designation	% overlap with IBA
1980	Aleksandrovskiy	Zakaznik	28

Habitat1	Habitat detail	% of IBA
Marine Coastal/Supratidal		major (>10)
Marine Intertidal		major (>10)
Forest	Coniferous forest (temperate/boreal)	minor (<10)

1. IUCN Habitat classification.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Tyk and Viakhtu bays (Russia (Asian)). Downloaded from https://datazone.birdlife.org/site/factsheet/tyk-and-viakhtu-bays-iba-russia-(asian) on 22/11/2024.