Field signs. A small bird with a nearly straight, long and sharp wings and tail cut deeply. From other lastochek issued an entirely different black horse, a light bottom. Forehead, chin and throat dark, reddish-rusty, below the throat dark band. Rapid flight. Kasatka - the best of our letun lastochek. Song - a fairly short chatter with crisp trill at the end. When alarm - a loud, sharp disyllabic Creek on the fly. At the right Yenisei, east of 96 o E (Tugarinov, Buturlin, 1911), found a different subspecies - Siberian, or ryzhebryuhaya Kasatka different chestnut bottom (Syroechkovsky, Rogacheva, 1980).  Distribution. Widely distributed in Eurasia, except the North. It occurs to the southern borders of the Krasnoyarsk Territory. In the mountain comes only with humans, nest on the villages. On the plains, steppes and forest, nest and away from populated places on individual technical or abandoned buildings. The northern border in Central Siberia is not entirely clear. At the Yenisey to numerous nesting everywhere in the southern taiga, to the north, at least until 60 o 10 'N (Bursky, Vakhrushev, 1983). In a medium taiga nesting is not proved, although Vorogove and Zotine (61 o N) during the summer every year, found some birds (Rogacheva et al, 1978). The Peace-known regular zalety Kasatka - in most cases the early spring (from May 18 to June 8). In 1981, Kasatka repeatedly met in the Peace in June and July (up to 1 August), one of them kept in the gaggle beregovushek. In 1984, marked the June meeting of the Peace and on the river. Varlamovke over open bolotom (Rogacheva, 1988).
Kasatka - one of the species, characterized by long zalety to the North. There are two meetings Kasatka for 10 years in the village. Selevaniha from Turuhanska (65 o 30 'N) (Tugarinov, Buturlin, 1911). I. Shukhov (1915) shows her to Turuhanskogo edge of 66 o N It is not uncommon zalety and tundra Taimyr. In the distant Arctic in the river basin. Bikady (74-75 o N) registered five single, mostly spring, zaletov Kasatka: 9 June, 1978, 29 June 1979, 2 birds (one of them okaltsovana) in the third decade of June 1980 and At the end of June 1981; swallows always appeared in the clear, warm, windless days (Matyushenkov, 1983). In ZIN USSR Academy of Sciences has swallows obtained at Cape Chelyuskina and-ve Chetyrehstolbovom. There are cases of passive skidding lastochek (type not specified) spring snowstorm on the Cape Sterlegova Beach and Peter Chichagova (Vronsky, 1986). II Chupina (1987) indicates zalety Kasatka tract in the Ary-Mas (Taimyr Reserve, 72 o 30 'N) 8 and 10 July 1983 and July 1982 (Rogacheva, 1988). Phenology. Under the Krasnoyarsk arrival - May 9-15, masonry, fresh and nasizhennaya - June 22, a mass departure of young - the end of July, late departure - September 17 (Yudin, 1952). Reproduction. The nest is usually close to housing rights, but as far as possible in the rarely visited buildings, sometimes in old wells, under bridges, under the ceilings of caves, thick branches of trees, the nests of large birds of prey. Sometimes assigns nests even ropes, hanging under the ceiling yurta. Jack lepitsya of wet earth soaked bird saliva. Komochkami between land vleplyayutsya straw, blade, horsehair. Inside the nest vystlano feathers, horsehair, soft grass. Masonry - White 4-6 Egg with gray, drill krapom red or purple (Syroechkovsky, Rogacheva, 1980). Nutrition. Feeds mainly flying insects, sometimes spiders, which catches on walls or in the grass (Syroechkovsky, Rogacheva, 1980). References. |
