a small gull that nests in colonies on sea cliffs, having a loud call that resembles its name 三趾鸥
Genus Rissa, family Laridae: two species, in particular the black-legged Rissa tridactyla of the North Atlantic and North Pacific 鸥属,鸥科:2种,尤指北大西洋和北太平洋的黑腿三趾鸥
语源
early 17th cent. (originally Scots): imitative of its call