Field signs. Nyrkovaya medium-sized duck. Boca, chest and lower white. The back and wings are black and brown. The head of otlivom black and bright white spot on the cheek (the females do not). Black beak, legs orange-red, yellow in females. Eyes red, yellow in females. Drake flying wings produces distinctive clinking sound. Voice - thick croak. Nyryaet Well, with the water rises slightly, flying fast and maneuverable. Swimming, holds the tail opuschennym (Syroechkovsky, Rogacheva, 1980).  Distribution. Usual duck Central Siberia, widely inhabit all the taiga zone. Gogol - wood duck by the nest in tree hollows. In this regard, to the north, it does not go further spread of at least selected large trees. The area Hantayskogo lakes and near Norilsk Barrow's Goldeneye nest regularly, albeit in a small number, settled in the hollow of old elyah and larch. Gogol is typical of Turuhanskom, in the upper Vilyuya and south, everywhere in the taiga, with enough water. Under the Krasnoyarsk and elsewhere with rocks, selyas on mountain rivers, Gogol comfortable nest not only in the hollows, but in the cleft of coastal cliffs (Tugarinov, Buturlin, 1911). In southern edge nemnogochislen (Rogacheva, 1988).
Phenology. In the taiga zone Barrow's Goldeneye edge almost priletayut before all the other ducks - mallard almost simultaneously with: in mid-May in the middle taiga and the twentieth of May in the northern taiga, the Turuhanska. In the forest in the region of Norilsk and Hantayskogo Lake, Gogol beginning to appear May 30 - June 1 and continues until the arrival of June 15-19 (Krechmar, 1966). In the middle taiga passage lasts until early June numbers. In the middle taiga (Peace, Eloguy) first chicks appear on the water in mid-July, but before the end of August are not yet full-fledged chicks. The massive rise in the wing in the middle taiga - at the end of August. Autumn departure late: until October (Syroechkovsky, Rogacheva, 1980). Reproduction. Jacks are usually in hollows, often high above the ground. Eggs large, lustrous, bluish-green, covered in the hollow large number of white-Pooh. In laying 5-12 eggs. Term nasizhivaniya - 30 days. During egg laying and in the first half nasizhivaniya drake kept around the nest. For males can be found in hollow sockets. When danger drake with the ringing takes off from water that serves as a signal for nasizhivayuschey ducks. The young are displayed together - for 2-3 hours. Obsohnuv through the day chosen from great snipe and jump down, sometimes with desyatimetrovoy height (Syroechkovsky, Rogacheva, 1980). Reproduction. Dobyvayut feed from the bottom of the reservoir, nyryaya to a depth of four meters Zhivotnoyadnaya duck. The main food: shellfish, C. finmarchicus, larvae of insects, small fish (Syroechkovsky, Rogacheva, 1980). Number. According to AS Martynov (1983), on the north edge often found in the vicinity of Lake. Essey and perhaps throughout Moyero-Kotuyskoy basin. Nest on the boundary river valleys in parts of the plateau Putorana, but not inside. In the steppe regions in summer are only a single adult birds. The maximum population density Gogol - in the most vysokobonitetnyh forests in the southern taiga, along the fast taiga rivers, Priangare and South Evenkia. More than half of provincial resource Gogol concentrated in the southern half of taiga, outside the area of agricultural development. Another 37% of birds inhabit the northern half of taiga. In the lower Priangare and southern Yenisei area the size of Gogol slightly declining in the rest of it is stable. The average number of Gogol fall in the province for the period 1978-1981 biennium. estimated at 690 thousand (Martynov, 1983). References. |
