Field signs. Pesochnik medium-sized, with starlings. The figure stubby, short legs, beak moderate length, dark, with a yellowish ground. All other sandpipers such good value is very dark color and yellow or greyish-yellow legs. Males and females opera is similar, females, on average, slightly larger and dlinnoklyuvee (beak males 26-29, females - 29-34 mm). In the top flight looks very dark, with white edges nadhvostya, along a narrow wing of a clear white stripe. Bottom-wing light only in the ground, the whole carpal Division and the ends of secondary makhovaya dark. Winter plumage even darker than marriage, more monotonous, no light eyebrows, no ryzhih kaemok, from the top is reddish (purple) shine (visible only near). Moulting in winter garb begins in mid-July - mid-August, and the Arctic coast in late summer birds can be found at different stages of a change of clothes. Young clearly expressed in white, red, and bezel ohristaya body back and wings, feathers smaller than adults, their feet over the bright yellow. Weight 55-110 grams length of 19-22 cm, wing 12,3-14,2 cm, the magnitude of 40-44 cm (Ryabitsev, 2001). The most frequent pozyvka - loud, but soft nose "kyut, keut" or "kevit. When tokovanii - hard rumble warble (Ryabitsev, 2001).  Distribution. Maloizuchenny probably rare Arctic Kulik. Jacks on some sections of the Arctic coasts of America and Eurasia, to a large extent on the islands (Rogacheva, 1988). Within nesting in Siberia found only in the Taimyr and the Severnaya Zemlya (Belikov, Randla, 1987).
Naval sandpiper on the Taimyr clearly timed to sea Arctic tundra, to a lesser extent - in the polar deserts. In typical tundra on the bank of Yenisei Gulf does not go (Vronsky, 1986). However, in other parts of range (Atlantic), he found in more southern podzonah tundra, which refers to the type of environmental plasticity (Rogacheva, 1988). In Taimyr, which are well represented all tundra subzones and many different types of sandpiper, its nesting area shifted to the north, and its distribution is not quite typical (Rogacheva, 1988). SM Assumption (1969) finds his typical mode of arctic tundra. Conclusion NV Wronskians (1986) that the optimum type of cluster as a whole is in a polar desert, and distributed in the arctic tundra and sporadichno introzonalno, E.V. Rogachevo (1988) seems too categorical. And, as she believes in the central Siberian sea sandpiper in the zone could be regarded as typical type of arctic desert. Habitats. Gnezdovye habitat - rocky or dry arctic tundra, riparian stony rossypi, gravel - naked or with sparse vegetation (Ryabitsev, 2001). Phenology. Data on phenology almost none. At the Taimyr full stack on 18 and 20 June, hatching chicks - July 9-12 (Syroechkovsky, Rogacheva, 1980). Reproduction. Nest is a pit in the ground or deepening of the rock, lining sparse vegetation. The normal clutch of 4 eggs, their coloring - from the little-ohristoy to the dust-brown or greenish-olive with brown and red and brown stains very different form and intensity. The size of eggs 33-42 x 24-29 mm. The main role of nesting troubles belongs male, females are involved in nasizhivanii, but lower early flee the nest and the male (Ryabitsev, 2001). Power supply - small invertebrates (Syroechkovsky, Rogacheva, 1980). Number. The strength of concrete data is not enough. N.V. Vronsky (1986) considers it a very rare type of polar desert sites in the coastal area of Dixon (Rogacheva, 1988). References. |
