Sea Lion Islands Group

IBA Criteria

Year of most recent IBA criteria assessment: 2006

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Ruddy-headed Goose Chloephaga rubidiceps LC breeding 2005 present A2
Falkland Steamerduck Tachyeres brachypterus LC breeding 2005 present A2
Gentoo Penguin Pygoscelis papua LC breeding 2000-2001 2,813 breeding pairs A1
Magellanic Penguin Spheniscus magellanicus LC breeding 2000-2001 abundant A1
Southern Rockhopper Penguin Eudyptes chrysocome VU breeding 2000-2001 484 breeding pairs A1
Southern Giant Petrel Macronectes giganteus LC breeding 1998 25 breeding pairs A1
Sooty Shearwater Ardenna grisea NT breeding 1998 present A1
Striated Caracara Phalcoboenus australis NT breeding 1998 10 breeding pairs A1, A2
Blackish Cinclodes Cinclodes antarcticus NT breeding 2005 abundant A2
Cobb's Wren Troglodytes cobbi LC breeding 2005 abundant A1, A2
White-bridled Finch Melanodera melanodera LC breeding 2005 present A2

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

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Sea Lion Island Nature Reserve 945 protected area overlaps with site 0
Sea Lion Island Ramsar Site, Wetland of International Importance 1,000 protected area overlaps with site 905


IUCN Habitat Habitat detail Extent (% of site)
Coastline -
Grassland -
For further information about the habitat classification please click here.

Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Sea Lion Islands Group. Downloaded from on 11/08/2022.