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Family Duck Anatidae

Ogar

Tadorna ferruginea Pallas, 1764

Field signs. Major duck (mass 1,2-1,6 kg), rusty-red color with ohristo-white head. Mahovye, tail, beak and legs black. Good walking on the ground. Flies too well, but nyryaet rare. Flies fast. Kriklivaya bird. In-flight Creek - calls throaty and sad «Ang ... Ang ». The female in the nest when approaching danger shipit. Most of the year, kept in pairs (Syroechkovsky, Rogacheva, 1980, 1995).

Distribution. Yuzhnopalearktichesky appearance, characteristic of lake and river and the forest-steppe part of the province. On suitable sites can settle and mountain reservoirs. At the beginning of XX century. (Sushkin, 1914) Ogar inhabited steppe left-bank part of Minusinsk depression, going north to the outskirts of taiga in Achinskom area (up to Uzhura and Lake. Uchum) on the right Yenisei was only around Minusinska. At present, breeds in Khakasia on the banks of reservoirs, including in areas rocky steppes (Prokofiev, 1977). On the steppe and forest plots distributed fairly evenly, north to Nazarovskogo area; bulk Ogar concentrated Shirinskiy area, especially in late summer and fall - they are here for molting and before departure. On the river valley. Abakan Ogar comes to the mountains. At Lake. Uchum Uzhurskogo area (the northernmost location) Ogar found to molt (Martynov, 1983). In Koybalskoy steppe places was typical for nesting (Bezborodov, 1979). Found in West Sayan: a pair of birds seen on May 3, 1981 on the bank of Yenisei 15 km above the mouth of the river. Charter is also concerned about female Ogar marked 6 Aug., 1982 gornotundrovom at the station, a small shallow lakes in the upper river. Big Ury (Syroechkovsky, Bezborodov, 1987). We have been in Gagulskoy valley (1000 m above SD. Seas) (Baikal, Laptsenak, 1995, 1996). In the taiga Ogar not nest, but known zalety far to the north: the pool of Lena and Angara, in the vicinity of the Peace in the Yenisey (62 ° 15 'N) (Rogacheva, 1988; Syroechkovsky, Rogacheva, 1995).

Habitats. The open steppe rivers and lakes (the latter is often salty or brackish), no shrubs drive vegetation. Can live on the outskirts of taiga, but the solid wood to avoid. In Salt Lake tied less than peganka. There are times when the nest Ogar are far from the water (at a distance of 0.5 to 10 kilometers, mostly in the 2-5 km) such nests are usually associated with zabolochennym valleys and rivers and streams to temporary ozerkam snegotaloy with water while Nearby necessarily significant open (Syroechkovsky, Rogacheva, 1995).

Photo: SA Vladimirov Reproduction. Jacks are usually satisfied in burrows foxes, badgers, but often in abandoned buildings, cleft on the banks of ponds and even the attics of residential buildings. PP Sushkina (1914) gives an interesting description of AF COTS, which is in south-eastern Achinskogo area around the lake of God, has been in the band lesopolya, Ogar, who slot in the hollows, like Gogol. Dupla were deep, located mainly in the larch at a height of 4-10 meters birds choose trees with hollows on the fringe of the forest clearings and streams, sometimes a few kilometers from the lake. According to SM Prokofiev, in the forest of Khakassia Ogar, usually satisfied with the nest in hollows of old larch, at an altitude of 10-20 meters in the steppes of Khakassia found their nests in 90% of the cases were located in the recesses of rocks and stones, and only 10% -- in burrows (Syroechkovsky, Rogacheva, 1995).

Photo: SA Vladimirov Do not Ogar female selects a male and female finds a male. Nasizhivayut and raise chicks before the recovery wing of the two birds. Masonry in Khakassia - 7-18 (average 14.2) eggs ivory; chicks appear at the end of May (the first vyvodki on lakes in Shirinskoy steppes, on average, from 29 May); number utyat in vyvodke - an average of 10.1; nesting success - 71.1%; vyvodki puhovikov last met on August 6 (Prokofiev, 1984).

Nutrition. Feeds of animal and plant foods, such as water or on land. Spring framework nutrition - young vshody solyanok and cereals, in the summer - insects and aquatic invertebrates; autumn Ogar fly to the fields, and where there is no grain, feed in shallow water invertebrates and aquatic plants (Syroechkovsky, Rogacheva, 1995).

Number. According to A. Martynov (1983), in 1979-1981 pockets of high-strength Ogar were located on the river. Abakan around with. Askiz and foothills in the west flanking Minusinskuyu hollow; total Ogar in the province, according to the simulation, it defines approximately 800 birds, believing that value stable. According to S. Prokofiev (1984, 1984a), with most of Koybalskoy Ogar concentrated steppe and the Lake Bele and Shira. According to his figures, the 60-70-s strength Ogar in Minusinsk Basin declined sharply as a result of hunting, mass raspashek tseliny, as well as hard use and poor storage protravlennogo grain with anti-gopher (Prokofiev, 1977). Since 1976, as a result of a number of conservation measures begun a gradual increase in the number Ogar, ubystrivsheesya as a result imposed in 1978, the ban on its prey. As a result of its continuing to grow. By the early 80-CM ies Prokofiev evaluates it for Minusinsk depression in the 2-3 thousand birds, believing that, although currently Ogar became common for him at suitable sites in Khakassia, it continued to be among the legkouyazvimyh in need of protection (Prokofiev, 1987 ). Average Ogar at reservoirs Iyuso-Shirinskoy steppe, according to the same researcher (Prokofiev, 1988), is 29-40,4 (average 34.9) species / km 2 of suitable land, the share accounted for 10.3 Ogar % Waterfowl encountered them on these waters during the August counts (Prokofiev, 1984a). The overall strength Ogar in Shirinskom and Ordzhonikidzevskom areas in 1985, SM Prokofiev is estimated at about 500 pairs (Syroechkovsky, Rogacheva, 1995).

References.


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