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Range DescriptionRoss's Gull breeds in the high Arctic of North America and Siberia. It is found in north-east Siberia, Russia, from the Taymyr Peninsula to the Kolyma River, locally in Greenland (to Denmark) and irregularly in Canada. Its wintering range in Siberia expands further west and east down to the tip of the Kamchatkan Peninsula, with other wintering sites including the north coast of Alaska (USA) and the south-eastern coast of Greenland (del Hoyo et al. 1996).