The site was identified as internationally important for bird conservation in 2022 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 List | Season (year/s of estimate) | Size | IBA criteria |
---|---|---|---|---|
Long-tailed Duck Clangula hyemalis | VU | winter (2009–2021) | 686–25,727 birds | A1, B3a, C1, C3 |
Long-tailed Duck Clangula hyemalis | VU | passage (2008–2011) | 311–54,810 birds | A1, B3a, C1, C3 |
Velvet Scoter Melanitta fusca | VU | winter (2009–2021) | 55–504 birds | A1, C1 |
Velvet Scoter Melanitta fusca | VU | passage (2008) | min 2,768 birds | A1, C1 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Ruhnu (Estonia). Downloaded from
https://datazone.birdlife.org/site/factsheet/ruhnu-iba-estonia on 28/12/2024.