Snow Petrel

Subspecies (2)

• Pagodroma nivea major

  breeds on islands in the Ross Sea region (Balleny Island, Cape Adare, Cape Hallet, and possibly Scott Island); intergrades with nominate nivea at many sites, including South Orkney and South Sandwich Islands, Casey, Terre Adélie, Cape Hunter, and Cape Denison; ranges widely in Antarctic waters

• Pagodroma nivea nivea

  breeds on the Antarctic Peninsula and Antarctic islands (except in the Ross Sea region), north to South Georgia and Bouvetøya Islands, but intergrades at many sites with subspecies major; ranges widely in Antarctic waters