Field signs. The head, neck from goitre, the entire upper side with the wings and tail dark brown, lower side with axillary white, and the average body wing. A young bird's head with neck and upper body of the party dark-brown, the lower side of a light-brown with pale edges of feathers, in stark contrast to the dark-brown goiter. Coloring bare parts is quite varied. Glazabelye or gray, yellow beak, greenish-white or greenish-blue, and the same colors neck skin. Legs are pale yellow, pale greenish or dust-zelenovatye. Wing 355-415 mm, the tail of 187-202 mm, 40-50 mm shank, beak 97-102 mm (Buturlin, 1935). Distribution. Islands and places poberezhyamaterikov tropical Pacific, Indian and Atlantic oceans. Zalet registered to the coast of the island of Iturup (Kuril Islands) 2 June 1976 (Stepanyan, 2003). References. |
