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 |
|---|---|---|---|---|
| Leach's Storm-petrel Hydrobates leucorhous | VU | breeding (1981) | 80,852 birds | A4ii |
| Tufted Puffin Fratercula cirrhata | LC | breeding (1981) | 31,929 birds | A4ii |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1980 | Alaska Maritime | National Wildlife Refuge (IV) | 19 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Umnak Pass Colonies (USA). Downloaded from
https://datazone.birdlife.org/site/factsheet/umnak-pass-colonies-iba-usa on 22/12/2024.