The Washington GAP Analysis Program applied to breeding birds only. These maps, which include wintering birds, pelagic (coastal) birds, and birds expanding their ranges, do not include range maps.
NatureMapping observations reported by townships throughout the year.
The Herring Gull winters from just below the breeding range in British Columbia south, in Washington, Oregon along the entire south coast and across several western states, as well as Baja California. The wintering area spreads all the way south-east as far as Florida. This gullís breeding range covers Alaska to northern British Columbia and east all the way across the Northern continent.Text edited by Gussie Litwer