Bird GuideGulls and TernsBlack-tailed Gull
Black-tailed Gull
Larus crassirostris

At a Glance

Common along the coastlines of eastern Asia, this gull has wandered to western Alaska a few times. Isolated birds have been found at a wide variety of other sites from coast to coast in North America. Although these far-flung strays may have been assisted in their arrival, perhaps resting on ships for part of their journey, they also might have wandered there on their own.
Gull-like Birds
Low Concern
Coasts and Shorelines, Lakes, Ponds, and Rivers, Landfills and Dumps

Range & Identification


18" Adult has well-defined black tail band, yellow bill with black band and red tip. Dark gray back and wings with black wingtips. First-winter bird very dark brown with pale face.
About the size of a Crow, About the size of a Mallard or Herring Gull
Tail Shape
Rounded, Short, Square-tipped

Songs and Calls

Seldom vocalizes as a vagrant. Gives a "kaoo-kaoo" call.