Black-tailed Gull
Larus crassirostris
Okresy
Asia, Europe, North America
About Black-tailed Gull
The Black-tailed Gull (Larus crassirostris) is a medium-sized (46 cm) gull, with a wingspan of 126–128 cm. The bird is resident in East Asia, including China, Taiwan, Japan and Korea. It is a vagrant to Alaska and northeastern North America.