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.
The Mew Gull winters along the west coast of North America, from Washington to the south of California. There is an area along the coast of British Columbia where these gulls live all year round, but most breeding occurs in the northwest corner of British Columbia, Alaska, the Yukon, and the Northwest Territories.Text edited by Gussie Litwer