Data for:
Durante Park
List:

Charadriiformes > Laridae

Slaty-backed Gull

Larus schistisagus

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Identification

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A large gull of northern coastlines; its thickset, short-winged profile distinguishes it from many similar Asian species. Adult has dark gray back and wings, intense pink legs, and an especially large white “crescent” (white tertial edges) near the wingtips when perched. Breeding adult white-headed; nonbreeding birds with variably heavy brown streaking on the head and upper breast. Juveniles dark brown and attain the adult's paler belly and gray back gradually (adult plumage attained in fourth plumage cycle). Call a deep, resonant “khaao.”

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