Field signs. Slightly smaller than the large Veretennikov, lower than the legs, beak noticeably thinner and curved upward, black or dark gray. In spring male brick-red, more vivid and less opestrenny than big Veretennikov. Female noticeably larger and dlinnoklyuvee male, burovato-or gray fox. In autumn the adult birds gray, with light ryzhinoy on the neck and chest, apparently young fox, with broad ohristymi kaemkami plumes on the back. The main difference from a large Veretennikov all naryadah - the lack of bright white stripes Krylova (there is little expression) and a light tail with alternating dark and white stripes, white with nadhvostya comes a sharp angle at the back. From the Asian bekasovidnogo Veretennikov is a leaner figure, a thin and slightly curved upwards beak, their nest areas are separated. The weight 190-450 g, 33-42 length, wing 20,3-23,0, the magnitude of 61-68 cm (Ryabitsev, 2001). When tokovanii male is on high tussock, and more - quickly fly over its territory at an altitude of several dozen meters, sharply vzmahivaya wings and the like perevalivayas from side to side. Song - measured and repeatedly loud sharp "tevvE-tevvE-tevvE ..." When anxiety male and female issue single or repeated cries "tion" or "tevE" similar to the currents, but a hasty and alarming shade. Pozyvki in negnezdovoe time - such as "tevekayuschie" sounds, usually single (Ryabitsev, 2001).  Distribution. Sporadichno found the bird, a characteristic mainly for the southern and sub-sub-typical bush tundra in the latter he apparently reached maximum strength. Occasionally meets (and possibly female) in the northern strip of typical tundra, forest and extreme northern taiga. Ascertain nesting area is located in the latitudinal limits: at the mouth of Yenisei - 70-72 o N, the West Taimyr - 68-73 o N, East Taimyr - at least 72-74 o N (Rogacheva, 1988).
Habitats. Jacks on relatively dry sites spotted, or kochkarnoy mohovolishaynikovoy tundra, looking them in the humid lowlands rivers and streams (Rogacheva, 1988). Phenology. The Lake. Queta spring a 4-12 June, with a passage. Khatanga, where he did not nest - June 16. AF Middendorf found at the Central Taimyr immure in the first decade of July, and August 29, met under the 75 o N the last birds before departure. A.Ja. Tugarinov at the mouth of the river. Deep already met nomadic young birds 7-23 August (Syroechkovsky, Rogacheva, 1980). Reproduction. Jacks suit in kochkovatoy or flat tundra of low beds dwarf Berezki, Labrador tea, herbs, but more often so that was the panorama view. Litter is usually thick, from lichens, dry leaves and other material. In laying, usually 4 eggs, their coloring ohristaya, brownish-olive or burovato-greenish, with varied, but often small and blurred brown spots, scroll, paint. The size of eggs 47-60 x 32-40 mm. Nasizhivayut two adult birds. When a man or a large predator-free bird nasizhivaniya vyletaet forward and raises Creek, which fly and neighbors raised a big stir. Nasizhivayuschaya bird or too advance leaves the nest, or, conversely, cork and can podpustit close. Concerned, the bird just standing on a log, sometimes flit or cross. Raven, skuas and other dangerous birds of Gambling harassed and expelled. Running time nasizhivaniya about 24 days, with the young hold both parents (Ryabitsev, 2001). Nutrition. Feed on a variety of invertebrates - both terrestrial and aquatic, and living in Ile moss and litter, gladly eat berries and seeds, especially in spring (Ryabitsev, 2001). Number. Gnezdovaya numbers exposed fluctuations (up to 15 times from year to year). In northern and central parts of sub-typical tundra rare in southern subzone typical tundra and tundra in the bush is typical, many places (Rogacheva, 1988). References. |
