Field signs. Burovato Top-gray, belly and podhvoste white, black spots on the chest. It looks like White goose, but smaller, mass 1,6-2,5 kg; short beak, a white spot on his forehead more (captures crown) in flight seems more ostrokryloy. Around the eyes bulging pale yellow ring. Young birds white spots on his forehead does not. Piskulki good walk and run, with other gusyami not mix. Voice thinner than the White Goose - a «squeaky», it is passed as «click ... click ... »« iyulyu-yuilo »(Ptushenko, 1952; Syroechkovsky, Rogacheva, 1995).  Dissemination of. Piskulka - Palearctic goose distributed in the southern strip of tundra and forest Taimyr, in the northern part eniseyskoy taiga and Evenkia (Krechmar, 1983; Krechmar, 1966; Rogacheva, 1988; Syroechkovsky, Rogacheva, 1995; Morozov, 1995; Syroechkovsky ml., 1996; Baranov, 1988; Martynov, 1984;). Within the range of reproductive found sporadichno. Today the border area of reproduction needed to be clarified (Morozov, 1995; Syroechkovsky ml., In 1996). In the Krasnoyarsk territory - A very rare type of span (Syroechkovsky et al, 2000).
Nesting of the goose found in some lakes in the western part of the plateau Putorana (Lake Kapchuk, Kutaramakan etc.). Apparently, piskulki survived on lake systems eastern part of the plateau and taiga in North Evenkia (Syroechkovsky ml., 1996). Several scattered small pockets of habitat type left in the river basin. Dudypty (southern tundra and forest), as well as in the forest upper river. Heta and its tributaries Volochanki, Boyarki, Big Romaniha, Maymechi (Syroechkovsky et al, 2000). Within the edge inhabit two population groups piskulki (Western and Eastern), with different wintering grounds and migration routes. Birds of the Western group inhabiting the western foothills Putorana, rivers and Dudypta Volochanka, flying in a south-westerly direction and spend the winter in the Caspian and Black seas. Gusi eastern factions living in East Taimyr (Khatanga River, Big Balahnya, Popigay) and the northern taiga Evenkia autumn migrate south and south-easterly direction and winter, probably in China. During migrations piskulka sometimes occurs on the Yenisei (Rogacheva et al, 1983; Rogacheva, Vakhrushev, 1983), and the Krasnoyarsk, apparently does not occur at all (Baranov, 1988). However, its passage marked in the Middle Angara: Kezhemskoe mnogoostrove, ss. Cova (Martynov, 1983 ; Emelyanov et al, 1996). We have repeatedly stated piskulka in Novoselovskom region of Krasnoyarsk region (oz. Intikol), Khakassia (lake set Trehozerki Black-Bugaevo, Lake Ulug-Kohl and Sarat, in Tuva on the lake. Torah-Hol (Syroechkovsky et al, 2000). Habitats. Birds living in Krasnoyarsk of the range, prefer two types of landscapes: the plains with dissected terrain, many reservoirs in the northern forest, tundra and the southern forested lake basin in the mountains Putorana (Syroechkovsky ml., 1996). At the same time, a set of nesting biotopes could have quite a wide spectrum. In addition to flat wetland sites, the goose selitsya river valleys, on the islands waters, in the foothills of yielding obryvistyh slopes near the tree-line (Martin, 1983; Syroechkovsky, Rogacheva, 1995). On flying adheres to the open steppe shores of lake waters, surrounded by fields of crops with cereals, where geese fly in the feeding. Spring migration piskulki in most of the Krasnoyarsk region expressed weakly. In Priangare during spring passage, they found razlivam flood plains of major rivers taiga. In autumn fairly active passage in the first decade of September is on the Yenisei in the forest-tundra, but in the northern boreal forest subzone piskulka becoming rare (Rogacheva et al, 1978; Rogacheva et al, 1983; Rogacheva , Vakhrushev, 1983). The constant, though slight migration of geese is for Central and Angara River. Lie in wait. In the last decade of the twentieth century. Piskulka become reservoirs to meet on the south edge, Khakassia and Tuva (Emelyanov et al, 1994; Savchenko et al, 1997). In place of breeding birds arrive most often in the first decade of June and almost immediately begin nesting. The young emerge 9-15 July; autumn departure begins in late August and ends in late September (Syroechkovsky et al, 2000 ). Reproduction. Nest primitive, the litter is usually a lot of moss and little Pooh. Complete masonry composed of 4-6 is slightly brilliant light-yellow eggs, formed in the second half of June (Krechmar, 1966; Syroechkovsky, Rogacheva, 1995) . Nutrition. Basically soilage (Syroechkovsky, Rogacheva, 1995). Number. During the 1978-1981 biennium. In the province, there were 110.0 thousand piskulek (Martynov, 1984). In the 1980's there has been a sharp decline in the number of species, and is currently the resources of the goose in the province do not exceed 12.0 thousand individuals (Syroechkovsky ml ., 1996). In the southern edge of sporadic meetings. At oz.Intikol 1-2 and 12-16 May 1995 took into account 12 piskulek. In South Minusinsk Basin (Khakassia) 11-12 May 1997 5 of the geese kept on the lake. Ulug-Col. During the autumn migration of the tract «Trehozerki» 13-14 October 1995 saw 12 piskulek (Syroechkovsky et al, 2000). In the basin of Middle Angara piskulek meetings more regularly. On the section of the river. Nedokury to the mouth of the river. And lie in wait up to its downstream there is quite clear span the path of this type. At the end of May 1995 there were more than 100 birds. During the autumn passage of the 1994-1995. Piskulek saw the passage of flocks numbering 20-30 individuals. Scattered passage comes at the Angara, where a single bird found in the area Kezhemskogo mnogoostrovya. In late 1980 - early 1990 in southern Siberia Prieniseyskoy pointed to 100 piskulek (Emelyanov et al, 1994 ). In the second half of the 1990's through the region of 200-300 geese flying over this kind of (Emelyanov, 1999). Limiting factors. One of the main reasons behind the sharp decline in the number of piskulki, is the degradation of wetlands as a wintering (the Caspian Sea basin, China) and through the passage. Substantial damage caused and direct production piskulek: so, just to the west Taimyr in the 1990's produced 1.2 thousand individuals (Syroechkovsky ml., 1996). Adversely affected, and an overall increase of anthropogenic impact: disturbing the birds, water pollution, poaching and the use of pesticides (Syroechkovsky et al, 2000). References. |
