The Washington Gap Analysis Project created breeding bird maps only. The non-breeding birds (e.g., wintering, pelagic (coastal), and birds expanding their ranges) are represented only by NatureMapping sightings.
NatureMapping observations reported by townships throughout the year.
This duck is fairly common on inland lakes and rivers. The White-winged Scoter spends winters on the coastal waters from Alaska to southern California, but the breeding area is much larger than that of the Black Scoter and stretches from Alaska, the Yukon and Northwest Territories, south across the Canadian provinces of British Columbia, Alberta, Saskatchewan and Manitoba. It is fairly common on inland lakes and rivers.Text edited by Gussie Litwer