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Range DescriptionGavia adamsii breeds in the Arctic in Russia, Alaska (USA), and Canada , and winters at sea mainly off the coasts of Norway (>1500 individuals [Bell and Hland 2008]), western North America, and the eastern coast of Asia, including the coasts of Japan, North Korea, South Korea, and China (del Hoyo et al. 1992; U.S. Fish and Wildlife Service 2009). The population is thought to number 16,000-32,000 individuals, with 3,000-4,000 in Alaska, 20,000 in Canada and 8,000 in Russia (U.S. Fish and Wildlife Service 2009). The breeding range in Russia has possibly contracted (K. Laing in litt. 2008). The westernmost breeding site in Russia is the south-western coast of Novaya Zemlya archipelago; the most dense (1.8 bp/10 sq km) and stable population is thought to be on Chukotka Peninsula; and the northernmost record is from the Upper Taimyra river mouth, Central Taimyr (see Hland 2008).