Field signs. Quite a large grebe, with some pintail size (weighing up to 700 grams); less chomgi, but most of the rest poganok. Top head to the eyes and mouth cut black or brown, the lower part of the head with neck and schekami ash-gray. Back black or black and brown with light edges of feathers, white chest and belly, sides with gray spots. Spring top chest and neck at the front and sides with red. At the head of a small black crest. Beak straight, black, yellow at the base. Eye of reddish-brown. Ostorozhnaya, nearly invisible bird, with the danger of trying to hide in the bush aquatic plants. Polet direct and quick, maneuverable, normally flies at an altitude of 20-30 meters nyryaet Well, can swim under water up to 50-60 hours Spring Creek - Loud, kind of reminds snicker zherebenka transferred at the end of grunting. Regular voice - «CEC-KEK» (Syroechkovsky, Rogacheva, 1980, 1995).  Distribution. Holarctic view from the divided range: the western subspecies (P. g. griseigena Bodd., 1783) to the east barely moving 80 ° E, ie distributed by Obi; east, a larger, subspecies (P. g. holboelli Reinh., 1853) comes west to the middle and upstream Vilyuya (Andreev, 1974). Thus, the Krasnoyarsk Territory is just as «suspend» range, and its territory until recently were known only not quite accurate zalety. Thus, there is reference G. Pophema (H. Popham) (1901) that its satellite (no ornithologist) seen under the three-Eniseyskom poganok, identified as seroschekih. Also not clearly indicate AY Tretiakov of finding this fungus in Turuhanskom province. Recently, SM Prokofiev (1987) found that seroschekaya Grebe occasionally, but always breeds in the wild lakes and forest steppe of Minusinsk depression. In terms of area, the landscape is the most «northern» a small poganok type: where there are suitable water bodies (in the forest zone mostly floodplain), it penetrates to nesting in the deciduous, mixed forests, and even podtaygu taiga. It is known to the Kola peninsula, the White Sea, Vologda and Kalinin regions, neighborhoods Surgut. It is possible to its nesting territory and waters of the southern taiga zone (Rogacheva, 1988; Syroechkovsky, Rogacheva, 1995).
Habitats. Marshlands, lakes, staritsy with rich aquatic vegetation (thickets of cane, reed). At Vilyue - staritsy and lakes on the river islands. At passage - Bank of large bodies of water (Syroechkovsky, Rogacheva, 1995).  Reproduction. Migratory birds. In the northern range nest alone, returning year after year for the same pool. Monogam. The nest is customary for poganok type soaked in water, aquatic plants in the bush; looks like a truncated cone, whose base is in the water and is on the bottom. The overall height of the nest - up to 48 cm, height of the surface - see masonry 3-5 - 2-6 in Yakutia, 4 eggs, first matovo-and-white, then in polluted form - green or brownish. In Yakutia full stack at the end of June, late departure (mature young birds - 28 September) (Andreev, 1974).
Nutrition. In the northern part of the range mostly - small fish (young perch, roach, stickleback, etc.), golovastiki, aquatic insects and their larvae (Syroechkovsky, Rogacheva, 1995). Size. Of the province is rare. At the upper and middle Vilyue rare, more common in the lower Vilyuya. The number of western subspecies declining throughout the northern range (Syroechkovsky, Rogacheva, 1995). References. |
