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Location Canada, British Columbia
Central coordinates 131o 12.67' West  52o 4.85' North
IBA criteria A4ii, A4iii
Area 11,000 ha
Altitude 0 - 75m
Year of IBA assessment 2008

Bird Studies Canada/Nature Canada



Site description The Anthony Island Important Bird Area is located off the southwest coast of Moresby Island, west of Kunghit Island in the Queen Charlotte Islands. It is centered around Anthony Island and its associated offshore islets and extends out to include a marine area of 5 km radius, from Cape Freeman on the west coast of Moresby Island, to Tuga and Etches Point within Louscoone Inlet, then across the western entrance of Houston Stewart Channel to Arnold and Bowles points on Kunghit Island. Also lying within this area are Louscoone Rocks, Adam Rocks, Flatrock Island, and Gordon Islands.

Anthony Island is forested with a typical mix of Sitka Spruce, Western Hemlock, and Western Red Cedar. Spruce is more predominant near the shore, and hemlock and cedar are more abundant inland. The forest understory is generally bare litter with some moss. Grass occurs along shoreline knolls and ridges, and scattered shrubs grow in patches throughout the island. Most of the shoreline of the island is rocky and cliff-bound. The islets range from bare rock, or rock with patches of grass and forbes, to forested islets with an understory varying from grasses to patchy or continuous dense shrubs. Gordon Islands, to the east of Anthony Island, are a series of rugged, dissected rocky knolls, covered with dense salal under a sparse spruce forest. Flatrock Island, Adam Rocks, and Louscoone Rocks are rocky with patches of grasses and forbes.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Cassin's Auklet Ptychoramphus aleuticus breeding  1985  25,400 breeding pairs  A4ii  Least Concern 
Rhinoceros Auklet Cerorhinca monocerata breeding  1985  13,771 breeding pairs  A4ii  Least Concern 
A4iii Species group - seabirds breeding  1985  20,000-49,999 breeding pairs  unknown  A4iii   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Gwaii Haanas National Marine Conservation Area Reserve 305,000 protected area overlaps with site 900  
Gwaii Haanas and Haida Heritage Site National Park Reserve 149,500 protected area overlaps with site 1,000  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Forest Temperate coniferous forest  -
Shrubland Scrub  -

Land use

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

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Anthony Island. Downloaded from http://www.birdlife.org on 03/09/2014

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