Field signs. Big beautiful teal, visually resembles svistunka, but noticeably larger and denser (weight 500-600 g). There Seleznev head mottled with bright green and ohristymi spots, white and black stripes, dark-gray back, sides bluish-gray with black struychatostyu; goitre and upper chest-pink wine with a V-shaped black pestrinami; belly white. A female spin dark brown, goiter, sides and upper chest ohristye, the rest of the bottom Bulanov. Voice Male - loud, blind dissyllable «CLAUD-CLAUD», dramatically different from the votes of other ducks. Local name - «Mukluks» - as well reminds Creek kloktuna. Voice of females - the sharp, chatter quack, quack like a svistunka, but more frequent. The flight time. In spring males shouting and sitting, and in flight. Doverchivaya bird (Syroechkovsky, Rogacheva, 1995). Distribution. Vostochnosibirsky view from the western boundary of the range in the Yenisei. It occurs in the rivers of Middle and Lower Angara (to the west before with. Motygino). There is an indication of rare nesting kloktuna by city Turuchansk, but it has not yet been confirmed (Tugarinov, Buturlin, 1911). In fact, Yenisey rarely met near Minusinska (Sushkin, 1914; Isakov, 1952), rare and the city of Krasnoyarsk, a few more celebrated near Eniseyska (R. Kem) (Kim, 1950). In Turuhanskom and Igarskom areas on the river. Yenisey in the 1960's kloktun was common everywhere in the spring passage (Syroechkovsky et al, 2000).  It spreads west and Yenisei (River basin. Eloguya, ss. Upper Taz), but nesting is not proved (Syroechkovsky, 1961), although summer meeting kloktuna back in the 1960's years here were not uncommon. Apparently, nest in the south-western Taimyr in the northern boreal forest and the forest: the Small Hantayskom lake in the origins of the river. Fish and others, as well as in Evenkia (Krechmar, 1966; Martynov, 1983). In typical tundra Taimyr this teal met poslegnezdovoe time to molt (Isakov, 1952).
In the 1970's on the river. Lower Angara summer kloktun no longer met. Do not we seen it in the lower reaches of the river. Lie in wait, and river. Average Angara in spring 1994 and autumn 1995 Obviously, the cluster area, as the number of the species, have decreased significantly over the past 20 years (Syroechkovsky, 1961). Apparently, kloktun already ceased to nest on the Yenisei and Priangare. Proletnye beings, according to survey data, have found the spring on the Kezhemskogo mnogoostrovya. Major proletnye ways kloktuna pass east of Yenisei, and the south edge of it is extremely rare and during migration. In spring 1985, on lakes Iyuso-Shirinskoy steppe SM Prokofiev (1988) were met, probably zaletnuyu group consisting of 10 of these birds. Habitats. Naselyaet taiga and lesotundrovye lakes and rivers. Gnezditsya kloktun usually on the border with bolotom forests or tundra areas. At the district. Upper Vilyuy (Evenkia) holds the valleys "herbal" taiga rivers and marshy meadows zakochkarennyh (Syroechkovsky et al, 2000). Reproduction. Jack, good shelter from the top and sides, satisfied on the ground, often stem from a tree or bush. Bird roet pit in the ground and the lining of dry grass, dry hvoey larch, reindeer moss and a rest in peace. Kladka - White 6-9 Egg with a yellowish or greenish-gray tint (Syroechkovsky et al, 2000). Meals little studied. In autumn and winter kloktun often selects the grain (millet, rice, soybean) fields and forest roads. In summer, feed on seeds of wild plants (sedgy etc.) and small aquatic invertebrates (Syroechkovsky et al, 2000).  Number. Over the past 20-25 years, the number of kloktuna in the province and across the entire range is reduced. Now it everywhere rare, and in the southern half of the taiga zone - an extremely rare. The sharp decline in the number of this species, mainly due to its heavy destruction in East China, wintering and passage. Srednesibirskie birds migrate through Hebei, Manchuria and winter in the territory of Jiangsu Province in the north to Guangdong, Guansi, southeastern Yunnan and on - Hainan Islands in the South, ie in the most developed in the agricultural regions of China (De Schauensee, 1984). It is happening and molting males (Syroechkovsky et al, 2000).
Limiting factors. Sharp drop in numbers Early kloktuna coincided with the "antivorobinoy campaign" in China: as kloktuny eat in the winter grain crops, it is subject to the general trend of destruction "bird infestation", besides giving a good meat (Krechmar, 1966 ). In addition to the destruction of their wintering, in a large number of hunters and kloktuny produced on the territory of the province. Currently prieniseyskoy part of the province, for example in the area of the Peace (62 ° 15 'N), the number of proletayuschih spring kloktunov declined over the past 15 years, 10-20 times (Syroechkovsky, Rogacheva, 1995). Instead of distinct "waves of passage" kloktunov, usually completing the migration of other duck, is not found every year and some birds. There is no doubt that this is on the verge of extinction (Syroechkovsky et al, 2000). References. |
