Data Zone
The site was identified as important 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 List1 | Season | Year(s) | Size | IBA criteria |
|---|---|---|---|---|---|
| Fork-tailed Storm-petrel Hydrobates furcatus | LC | breeding | 1974-2009 | 200,000 individuals | A4i |
| Pelagic Cormorant Urile pelagicus | LC | breeding | 1974-2009 | 1,500 individuals | A4i |
| Red-faced Cormorant Urile urile | LC | breeding | 1974-2009 | 1,500 individuals | A4i |
| Glaucous-winged Gull Larus glaucescens | LC | breeding | 1974-2009 | 8,740 individuals | A4i |
| Tufted Puffin Fratercula cirrhata | LC | breeding | 1974-2009 | 102,200 individuals | A4ii |
| Horned Puffin Fratercula corniculata | LC | breeding | 1974-2009 | 143,200 individuals | A4ii |
| Cassin's Auklet Ptychoramphus aleuticus | NT | breeding | 1974-2009 | 100,000 individuals | A4ii |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2012) may differ.
| Year | Protected Area | Designation | % overlap with IBA |
|---|---|---|---|
| 1932 | Alaska Peninsula | National Wildlife Refuge | 11 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Amagat & Umga Island Colonies (USA). Downloaded from
https://datazone.birdlife.org/site/factsheet/amagat-&-umga-island-colonies-iba-usa on 22/11/2024.