Amagat & Umga Island Colonies

IBA Criteria

Year of most recent IBA criteria assessment: 2012

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
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

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Alaska Peninsula National Wildlife Refuge 1,595,960 protected area overlaps with site 0
Alaska Maritime National Wildlife Refuge 2,637,840 protected area is adjacent to site 0

Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Amagat & Umga Island Colonies. Downloaded from on 21/09/2020.