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 |
|---|---|---|---|---|
| Fork-tailed Storm-petrel Hydrobates furcatus | LC | breeding (1974–2009) | 123,000 birds | A4i |
| Leach's Storm-petrel Hydrobates leucorhous | VU | breeding (1974–2009) | 114,000 birds | A4ii |
| Northern Fulmar Fulmarus glacialis | LC | breeding (1974–2009) | 440,000 birds | A4ii |
| Black-legged Kittiwake Rissa tridactyla | VU | breeding (1974–2009) | 71,700 birds | A4i |
| Tufted Puffin Fratercula cirrhata | LC | breeding (1974–2009) | 99,600 birds | A4ii |
| Horned Puffin Fratercula corniculata | LC | breeding (1974–2009) | 370,200 birds | A4ii |
| Parakeet Auklet Aethia psittacula | LC | breeding (1974–2009) | 29,600 birds | A4ii |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1980 | Alaska Maritime | National Wildlife Refuge (IV) | 93 |
| 1980 | Semidi | Wilderness (Ib) | 93 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Semidi Islands Colonies (USA). Downloaded from
https://datazone.birdlife.org/site/factsheet/semidi-islands-colonies-iba-usa on 22/12/2024.