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Year of most recent IBA criteria assessment: 2000

Populations of IBA trigger species

Species	Current IUCN Red List Category	Season	Year(s) of estimate	Population at site	IBA criteria triggered
European Storm-petrel Hydrobates pelagicus	LC	breeding	1989	5,000 breeding pairs	A4ii, B1ii, B2
Atlantic Puffin Fratercula arctica	VU	breeding	1989	25,000 breeding pairs	B1ii
Black Guillemot Cepphus grylle	LC	breeding	1989	50 breeding pairs	A4ii, B1ii
A4iii Species group - seabirds	n/a	breeding	1989	20,000-49,999 breeding pairs	A4iii

Note: The current IUCN Red List category may differ from the category that was valid at the time of IBA criteria assessment.

For more information about the IBA criteria, please click here

IUCN Habitat	Habitat detail	Extent (% of site)
Grassland		-
Marine Coastal/Supratidal		-

For further information about the IUCN habitat classification, please click here.

Land-use	Extent (% of site)
agriculture	-

For further information about the land-use classification, please click here.

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Hestur. Downloaded from http://datazone.birdlife.org/site/factsheet/95 on 08/06/2023.