Field signs. A small (with thrush) motley Kulik with short legs and beak. The top red, with black and white spots, black head with white, black crop, the rear of the back and belly white. Legs are orange. In-flight noticeable white stripe on the wings. Young top head and chest brown. Very krikliva from the slot. Voice - treskuchaya warble "Viti Viti Vitit (Syroechkovsky, Rogacheva, 1980). Distribution. Krugopolyarny seaside Arctic Kulik. In Central Siberia typical bird of Arctic tundra, with a maximum density of nesting in the coastal areas. In addition to marine coasts Taimyr, occasionally nest in several places at the lake. Taimyr and the surrounding areas of Rivers (Lower Taimyr, Bikada maybe upper Taimyr) - probably where off the coast of large reservoirs developed tundroarkticheskie landscapes (Rogacheva, 1988) . The density of nesting in the North-West Taimyr - 11-12 individuals / km 2 (Vronsky, 1986). Specific information on nesting a little bit. It seems that breeds throughout Polar coast of the Taimyr Dickson in the west to Hatanskogo Gulf in the east. The southern border nesting is not entirely clear (in the West Taimyr, probably about 72 ° N) (Rogacheva, 1988). Phenology. Data on phenology little. AY Tugarinov (1927) said the massive spring and fall overflights kamnesharki through Dauriyu, and the Krasnoyarsk considers it a rare passage. The Peace at the end of May kamnesharki in a small number each year occur in the gaggle of other span sandpipers, mostly rzhanok and hrustanov. In Taimyr fly away at the end of August - early September (Syroechkovsky, Rogacheva, 1980).  Reproduction. Gnezdovye biotopes quite diverse. According NV Wronskians (1986), kamnesharki inhabit different types of Arctic tundra, but they need a combination of dry nesting sites of different types (usually stained nezadernovannogo ground) for the device nests and a variety of wet nizkotravnyh sites for feeding (mochazhiny, wet down in the tundra, valley streams, cross-track). Other authors show how cluster biotope seaside strip of tundra with dense vegetation, often with stones and lichens (Rogacheva, 1988). Nest - flat fossa, usually hiding in rocks or under a bush with sparse litter of leaves and stems. Masonry - 4 grushevidnyh olive-green eggs with dark spots. Nasizhivayut both birds. A. J. Tugarinov at the mouth of the river. Deep met fully fledged young kamnesharok the end of the first decade of August in common with a gaggle gerbil (Syroechkovsky, Rogacheva, 1980). Nutrition. Pitaetsya small crustaceans, molluscs, insect larvae, which is looking under the stones, turning their beak. Kamnesharka can turn the stone equal weight of her body. Also eat fish offal from the parking fishermen (Syroechkovsky, Rogacheva, 1980). Number. The cluster size details have only NV Vronskogo (1986); in the vicinity of Dickson had a maximum density of nesting on the beach, the mouths of major creeks (11.6 individuals / km 2). References. |
