Field signs. Very large sea duck (mass up to 2,3-2,5 kg). A male snow-white top, black on temeni «cap», green neck, chest orange-pink, black belly, legs yellowish. Klyuv spring orange-yellow. Female and young - brown-brown with dark pestrinami, beak and legs gray. Flies low, but rapidly above the water. Nyryaet Well, under water grebet wings. Voice Male - «aguuu-aguuu», females - low «correspondent-CRE» (Syroechkovsky, Rogacheva, 1995).  Distribution. Coastal sea birds, throughout the year related to the Litoral. Avoid the coast of the Siberian Arctic. Western subspecies (Sm mollissima) normally nest on the east to Novaya Zemlya and Vaygacha and Pacific subspecies (Sm v.-nigrum) - west to Chaunskoy lips. To the edge of several known zaletov in Yenisei Bay (Tugarinov, Buturlin, 1911), on the northern coast of Taimyr in the bay area Knipovicha and Cape Wrangel (Sdobnikov, 1959) and the mouth of the river. Khatanga (Rogacheva, 1988). It seems that all encountered birds belong to the western subspecies (Rogacheva, 1988). Detected by nesting on the islands Izvestia CEC and the ve-Sverdrup in the central part of the Kara Sea (Syroechkovskiy-ml., Lappo, 1994).
Habitats. Coastal sea birds, throughout the year related to litoralyo. For nesting chooses rocky sea coast, particularly the small rocky islands (Rogacheva, 1988; Syroechkovsky, Rogacheva, 1995). Reproduction. Gnezditsya colonies. Nest - hole in the ground, lining after the beginning of egg laying famous gagachim down to pull out from a female. Masonry - 5-6 (typically 4) large greenish-gray eggs (Syroechkovsky, Rogacheva, 1995). Nutrition. Basis food - marine invertebrates: shellfish (especially mussels and periwinkle), crustaceans (especially balyanusy), echinoderms, etc. (Syroechkovsky, Rogacheva, 1995). Number. At the territory meets the unit (Syroechkovsky, Rogacheva, 1995). References. |
