• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

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	1997	200 breeding pairs	A3
Brent Goose Branta bernicla	LC	breeding	1997	present	A3, A4i
Greater White-fronted Goose Anser albifrons	LC	breeding	1997	present	A3
Lesser White-fronted Goose Anser erythropus	VU	breeding	1997	present	A1, A3
Long-tailed Duck Clangula hyemalis	VU	breeding	1997	abundant	A3, A4i
Spectacled Eider Somateria fischeri	NT	breeding	1997	2,000 breeding pairs	A3, A4i
King Eider Somateria spectabilis	LC	breeding	1997	common	A3
Common Eider Somateria mollissima	NT	breeding	1997	frequent	A3
Greater Scaup Aythya marila	LC	breeding	1997	uncommon	A3
Baikal Teal Sibirionetta formosa	LC	breeding	1997	rare	A1
Sandhill Crane Grus canadensis	LC	breeding	1997	frequent	A3
Yellow-billed Loon Gavia adamsii	NT	breeding	1997	rare	A3
Grey Plover Pluvialis squatarola	VU	breeding	1997	uncommon	A3
Ruddy Turnstone Arenaria interpres	NT	breeding	1997	uncommon	A3
Dunlin Calidris alpina	NT	breeding	1997	common	A3
A4iii Species group - waterbirds	n/a	breeding	1997	min 20,000 individuals	A4iii

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
1995	Chaunskaya guba	Zakaznik	11

Habitat1	Habitat detail	% of IBA
Grassland	Tundra	major (>10)
Marine Coastal/Supratidal		major (>10)
Marine Intertidal		major (>10)
Wetlands (inland)		-

1. IUCN Habitat classification.

---

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Chaun delta (Russia (Asian)). Downloaded from https://datazone.birdlife.org/site/factsheet/chaun-delta-iba-russia-(asian) on 23/11/2024.