Data Zone
The site was identified as internationally important for bird conservation in 2012 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 |
|---|---|---|---|---|
| Pelagic Cormorant Urile pelagicus | LC | breeding (1974–2009) | 2,165 birds | A4i |
| Red-faced Cormorant Urile urile | LC | breeding (1974–2009) | 1,938 birds | A4i |
| Glaucous-winged Gull Larus glaucescens | LC | breeding (1974–2009) | 7,328 birds | A4i |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1980 | Alaska Maritime | National Wildlife Refuge (IV) | 95 |
| 1980 | Aleutian Islands | Wilderness (Ib) | 90 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Attu Island Colony (USA). Downloaded from
https://datazone.birdlife.org/site/factsheet/attu-island-colony-iba-usa on 23/12/2024.