The site was identified as internationally important for bird conservation in 2001 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Species |
Red List |
Season (year/s of estimate) |
Size |
IBA criteria |
Southern Pintail Anas eatoni |
VU |
resident (1984) |
present |
A2 |
King Penguin Aptenodytes patagonicus |
LC |
breeding (1984) |
100,000 pairs |
A4ii |
Gentoo Penguin Pygoscelis papua |
LC |
breeding (1984) |
2,000–9,000 pairs |
A4ii |
Macaroni Penguin Eudyptes chrysolophus |
VU |
breeding (1984) |
200,000–900,000 pairs |
A4ii |
Southern Rockhopper Penguin Eudyptes chrysocome |
VU |
breeding (1984) |
93,000 pairs |
A4ii |
Wilson's Storm-petrel Oceanites oceanicus |
LC |
breeding (1984) |
20,000–90,000 pairs |
A4ii |
Grey-backed Storm-petrel Garrodia nereis |
LC |
breeding (1984) |
200–900 pairs |
A4ii |
Black-bellied Storm-petrel Fregetta tropica |
LC |
breeding (1984) |
2,000–9,000 pairs |
A4ii |
Snowy Albatross Diomedea exulans |
VU |
breeding (1984) |
329 pairs |
A1, A4ii |
Sooty Albatross Phoebetria fusca |
EN |
breeding (1984) |
1,300 pairs |
A1, A4ii |
Light-mantled Albatross Phoebetria palpebrata |
NT |
breeding (1984) |
900–1,000 pairs |
A4ii |
Grey-headed Albatross Thalassarche chrysostoma |
EN |
breeding (1984) |
3,750 pairs |
A1, A4ii |
Northern Giant Petrel Macronectes halli |
LC |
breeding (1984) |
190 pairs |
A1, A4ii |
Southern Giant Petrel Macronectes giganteus |
LC |
breeding (1984) |
323 pairs |
A4ii |
Blue Petrel Halobaena caerulea |
LC |
breeding (1984) |
20,000–90,000 pairs |
A4ii |
Fairy Prion Pachyptila turtur |
LC |
breeding (1984) |
20,000–90,000 pairs |
A4ii |
MacGillivray's Prion Pachyptila macgillivrayi |
CR |
breeding (1984) |
1,000,000 pairs |
A4ii |
Kerguelen Petrel Aphrodroma brevirostris |
LC |
breeding (1984) |
20,000–90,000 pairs |
A4ii |
Soft-plumaged Petrel Pterodroma mollis |
LC |
breeding (1984) |
20,000–90,000 pairs |
A4ii |
Great-winged Petrel Pterodroma macroptera |
LC |
breeding (1984) |
20,000–90,000 pairs |
A4ii |
Grey Petrel Procellaria cinerea |
NT |
breeding (1984) |
2,000–9,000 pairs |
A4ii |
White-chinned Petrel Procellaria aequinoctialis |
VU |
breeding (1984) |
20,000–90,000 pairs |
A4ii |
Common Diving-petrel Pelecanoides urinatrix |
LC |
breeding (1984) |
2,000,000–3,000,000 pairs |
A4ii |
South Georgia Diving-petrel Pelecanoides georgicus |
LC |
breeding (1984) |
1,000,000 pairs |
A4ii |
Imperial Shag Leucocarbo atriceps |
LC |
breeding (1984) |
110–120 pairs |
A4i |
Kerguelen Tern Sterna virgata |
NT |
breeding (1984) |
110 pairs |
A1, A4i |
Brown Skua Catharacta antarctica |
LC |
breeding (1984) |
200–900 pairs |
A4ii |
A4iii Species group - seabirds |
n/a |
breeding (1984) |
4,500,000–6,700,000 pairs |
A4iii |