Rank MethodExpertise without calculation
Review Date2016-04-09
Change Date1996-11-26
Range Extent>2,500,000 square km (greater than 1,000,000 square miles)
Range Extent CommentsBREEDS: western and northern Alaska, northern Yukon, northern Mackenzie, and Banks, Melville, Ellesmere, Bylot, Dundas, and northern Baffin islands, and south to eastern Keewatin, Southhampton and Mansel islands, northern Quebec, and probably northern Labrador; in Palearctic from Greenland and Iceland through arctic islands to northern Siberia. Nonbreeders summer off coasts of California and Newfoundland. NORTHERN WINTER: primarily pelagic, ranges widely, mainly in Southern Hemisphere off both coasts of South America and western Africa, also western Pacific from Japan south; primarily in productive waters of Humboldt Current off Peru and Chile, and Benguela Current off West Africa south to the Cape of Good Hope.