Species: Oceanodroma leucorhoa

H - >2,500,000 square km (greater than 1,000,000 square miles) - H - Breeding range in the northwestern Pacific Ocean extends from the Commander Islands south to the Kuril Islands and Hokkaido, Japan (AOU 1998). Breeding range in the eastern Pacific Ocean includes southern Alaska (including the Aleutian Islands), British Columbia, Washington, Oregon, California, and Baja California (Los Coronados, San Benito, and Guadalupe Islands, and Alijos Rocks). Breeding range in the western Atlantic Ocean extends from southern Labrador to Maine (Casco Bay) and Massachusetts (Penikese Islands). Breeding range in the eastern Atlantic Ocean includes Iceland, Faeroe Islands, Norway, Scotland, and Ireland (AOU 1998). <br><br>Southern Hemisphere: Potential for colonizing Southern Hemisphere: New Zealand and South Africa. Whittington et al. (2001) reported the first confirmed breeding (20 pairs) on Dyer Island off the coast of South Africa (AOU 1998). <br><br>This storm-petrel ranges at sea in the Pacific Ocean from the breeding areas south to the Hawaiian, Revillagigedo, and Galapagos lands, and in the western Pacific to Indonesia and New Guinea; and in the Atlantic Ocean south along both coasts to Florida, the West Indies, Caribbean Sea, Brazil, and South Africa, rarely but regularly also to the west coast of Greenland (AOU 1998).<br><br>Casual occurrences extend to the west coast of Greenland and eastern Atlantic islands, Mediterranean Sea, and western Europe (Huntington et al. 1996, AOU 1998).