Anthony Island

IBA Justification

The site was identified as important in 2008 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):
Species Current IUCN Red List Category Season Year(s) Population estimate at site IBA criteria met
Rhinoceros Auklet Cerorhinca monocerata LC breeding 1985 13,771 breeding pairs A4ii
Cassin's Auklet Ptychoramphus aleuticus NT breeding 1985 25,400 breeding pairs A4ii
A4iii Species group - seabirds n/a breeding 1985 20,000-49,999 breeding pairs A4iii

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2008).

IBA Protection

Protected area (PA) PA designation PA area (ha) Relationship of PA with IBA Overlap of PA with IBA (ha)
Gwaii Haanas National Park Reserve Of Canada And Haida Heritage Site National Park 147,440 protected area overlaps with site 1,000
Gwaii Haanas National Marine Conservation Area Reserve & Haida Heritage Site National Marine Conservation Area 350,000 protected area overlaps with site 0
Gwaii Haanas National Marine Conservation Area Reserve 305,000 protected area overlaps with site 900


Habitat (IUCN level 1) Habitat detail Extent (% of site)
Forest Temperate coniferous -
Shrubland Scrub -
For more information about the IUCN Habitat classification, please click here.

Land use

Land-use Extent (% of site)
not utilised -

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Anthony Island. Downloaded from on 08/12/2023.