美洲银鸥

分类位置

同属物种

亚美尼亚鸥

Armenian Gull

Belcher's Gull

Belcher's 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

The American herring gull (Larus smithsonianus or Larus argentatus smithsonianus), also known as the Arctic herring gull or Smithsonian gull, is a large gull that breeds in North America, where it is treated by the American Ornithological Society as a subspecies of herring gull (L. argentatus). Adults are white with gray back and wings, black wingtips with white spots, and pink legs. Immature birds are gray-brown and are darker and more uniform than European herring gulls, with a darker tail.