The Antarctic Petrel (Thalassoica antarctica) is a boldly marked dark brown and white petrel, found in Antarctica, most commonly in the Ross and Weddell seas.
Over 250,000 pairs of Antarctic Petrels nest there annually, with about 500,000 non-breeding birds also present during the breeding season.
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Ardery Island, along with nearby Odbert Island, is protected under the Antarctic Treaty System as Antarctic Specially Protected Area (ASPA) No.103 because they support several breeding species of petrel and provide examples of their habitat, notably that of Antarctic Petrels and Southern Fulmars.
There appears to be a subgroup within the family consisting of the giant petrels, the members of Fulmarus, the Antarctic Petrel, and the Snow Petrel.
Odbert Island, along with nearby Ardery Island, is protected under the Antarctic Treaty System as Antarctic Specially Protected Area (ASPA) No.103 because they support several breeding species of petrel and provide examples of their habitat, notably that of Antarctic Petrels and Southern Fulmars.