Belcher's Gull

分类位置

同属物种

美洲银鸥

American Herring Gull

亚美尼亚鸥

Armenian Gull

黑尾鸥

Black-tailed Gull

加州鸥

California Gull

里海银鸥 (黄脚银鸥)

Caspian Gull

普通海鸥

Common Gull

形态与习性

Belcher's gull (Larus belcheri), also known as the band-tailed gull, is a bird in the family Laridae found along the Pacific coast of South America. It formerly included the very similar Olrog's gull as a subspecies, but that bird occurs on the Atlantic coast of South America and is now accepted as Larus atlanticus. Belcher's gull is a medium-sized gull with a blackish mantle, white head and underparts, a black band on the otherwise white tail, and a yellow bill with a red and black tip. Non-bre