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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'):

Species	Current IUCN Red List Category	Season	Year(s)	Population estimate at site	IBA criteria met
King Eider Somateria spectabilis	LC	breeding	1998	uncommon	A3
Grey Plover Pluvialis squatarola	LC	breeding	1998	frequent	A3
Pacific Golden Plover Pluvialis fulva	LC	breeding	1998	frequent	A3
Ruddy Turnstone Arenaria interpres	LC	breeding	1998	rare	A3
Temminck's Stint Calidris temminckii	LC	breeding	1998	frequent	A3
Dunlin Calidris alpina	LC	breeding	1998	uncommon	A3
Little Stint Calidris minuta	LC	breeding	1998	frequent	A3
Red Phalarope Phalaropus fulicarius	LC	breeding	1998	frequent	A3
Black-legged Kittiwake Rissa tridactyla	VU	breeding	1990	30,000-40,000 individuals	A4i
Glaucous Gull Larus hyperboreus	LC	breeding	1998	abundant	A3
Arctic Tern Sterna paradisaea	LC	breeding	1998	uncommon	A3
Long-tailed Jaeger Stercorarius longicaudus	LC	breeding	1998	uncommon	A3
Snowy Owl Bubo scandiacus	VU	breeding	1998	common	A3
Lapland Longspur Calcarius lapponicus	LC	breeding	1998	frequent	A3
Snow Bunting Plectrophenax nivalis	LC	breeding	1998	common	A3
A4iii Species group - seabirds	n/a	breeding	1998	60,000-70,000 individuals	A4iii

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2004).

Protected area (PA)	PA designation	PA area (ha)	Relationship of PA with IBA	Overlap of PA with IBA (ha)
Terpej-Tumus	Resource Reserve	1,112,000	protected area contains site	3,500

Habitat (IUCN level 1)	Habitat detail	Extent (% of site)
Grassland	Tundra	-
Wetlands (inland)		-
Marine Coastal/Supratidal		-

For more information about the IUCN Habitat classification, please click here.

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Preobrazheniya island. Downloaded from http://datazone.birdlife.org/site/factsheet/preobrazheniya-island-iba-russia-(asian) on 30/11/2023.