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The site was identified as important in 2016 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
Baikal Teal Sibirionetta formosa	LC	passage	1997	present	A1
Northern Fulmar Fulmarus glacialis	LC	breeding	1997	present	A4ii
Spotted Greenshank Tringa guttifer	EN	passage	1997	present	A1
Black-legged Kittiwake Rissa tridactyla	VU	breeding	1997	present	A4i
Slaty-backed Gull Larus schistisagus	LC	breeding	1997	present	A4i
Rhinoceros Auklet Cerorhinca monocerata	LC	breeding	1997	present	A4ii
Parakeet Auklet Aethia psittacula	LC	breeding	1997	present	A4ii
Crested Auklet Aethia cristatella	LC	breeding	1997	present	A4ii
Ancient Murrelet Synthliboramphus antiquus	LC	breeding	1997	present	A4ii
Thick-billed Murre Uria lomvia	LC	breeding	1997	present	A4ii
Common Murre Uria aalge	LC	breeding	2006	min 250,000 individuals	A4ii
Steller's Sea-eagle Haliaeetus pelagicus	VU	passage	1997	present	A1
A4iii Species group - seabirds	n/a	breeding	2006	min 250,000 individuals	A4iii

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2016) may differ.

Year	Protected Area	Designation	% overlap with IBA
1988	Poronaisky	Zapovednik	1

Habitat1	Habitat detail	% of IBA
Marine Coastal/Supratidal		major (>10)
Marine Intertidal		major (>10)
Artificial/Terrestrial	Urban areas	minor (<10)

1. IUCN Habitat classification.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Tyuleniy Island (Russia (Asian)). Downloaded from https://datazone.birdlife.org/site/factsheet/tyuleniy-island-iba-russia-(asian) on 22/11/2024.