Semisopochnoi 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
Red-faced Cormorant Urile urile LC breeding 1974-2009 2,684 individuals A4i

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)
Aleutian Islands Wilderness 533,102 protected area overlaps with site 0
Alaska Maritime National Wildlife Refuge 2,637,840 protected area overlaps with site 0


Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Semisopochnoi Island Colonies. Downloaded from http://www.birdlife.org on 25/05/2020.