Data Zone
The site was identified as important 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 List1 | Season | Year(s) | Size | IBA criteria |
|---|---|---|---|---|---|
| Long-tailed Duck Clangula hyemalis | VU | winter | 2009-2021 | 686-25,727 individuals | A1, B3a, C1, C3 |
| Long-tailed Duck Clangula hyemalis | VU | passage | 2008-2011 | 311-54,810 individuals | A1, B3a, C1, C3 |
| Velvet Scoter Melanitta fusca | VU | winter | 2009-2021 | 55-504 individuals | A1, C1 |
| Velvet Scoter Melanitta fusca | VU | passage | 2008 | min 2,768 individuals | A1, C1 |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2022) may differ.
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Ruhnu (Estonia). Downloaded from
https://datazone.birdlife.org/site/factsheet/ruhnu-iba-estonia on 23/11/2024.