IBA Justification

The site was identified as important in 2000 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
European Storm-petrel Hydrobates pelagicus LC breeding 1989 2,500 breeding pairs A4ii, B1ii, B2
Northern Fulmar Fulmarus glacialis LC breeding 1989 100,000 breeding pairs A4ii, B1ii
European Shag Gulosus aristotelis LC breeding 1989 200 breeding pairs B3
Atlantic Puffin Fratercula arctica VU breeding 1989 20,000 breeding pairs B1ii, B2
Black Guillemot Cepphus grylle LC breeding 1989 400 breeding pairs A4ii, B1ii, B2
A4iii Species group - seabirds n/a breeding 1989 100,000-499,999 breeding pairs A4iii

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2000).


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Grassland -
Marine Coastal/Supratidal -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
unknown -

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Suduroy. Downloaded from on 03/03/2024.