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 |
---|---|---|---|---|
Pelagic Cormorant Urile pelagicus | LC | breeding (1974–2009) | 2,418 birds | A4i |
Black-legged Kittiwake Rissa tridactyla | VU | breeding (1974–2009) | 24,940 birds | A4i |
Least Auklet Aethia pusilla | LC | breeding (1974–2009) | 399,335 birds | A4ii |
Crested Auklet Aethia cristatella | LC | breeding (1974–2009) | 924,289 birds | A4ii |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Southwest Cape Colonies (USA). Downloaded from
https://datazone.birdlife.org/site/factsheet/southwest-cape-colonies-iba-usa on 23/12/2024.