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Family [Pogankovye] Of podicipedidae |
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[Krasnosheynaya] toadstool Podiceps of auritus L., 1758 Name of view of other languages
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Field signs. Small beautiful toadstool with value from the teal; the length of the wing of males 132-156, of female is 124-153 mm; the mass of males 320-550 g., females is 250-376 g. ([Kurochkin], 1982). The top of body blackish- is brown, bottom white. In spring and at the beginning of summer the front of neck, goiter and sides are the red, on the head [rzhavchato]- red beams of feathers ( horns ), between them crest from the black elongated bright feathers; the base of head has collar from the black feathers. In autumn and in winter almost entire neck is white; red color, [rozhek] and there is no collar. Eye is red, the beak sufficiently massive, straight line, black with the bright tip. It flies more willingly than other toadstools. To the wing rises easily, the flight of straight line and rapid. It floats well and dives. Floating, shallowly it is immersed in the water, neck in this case is elongated upward. Little it is careful, but it nevertheless falls rarely on eyes. It is taciturn, voice can be heard in essence in spring. Marriage cries - disharmonious and intermittent, with the guttural and [skrezhushchimi] notes. Invocatory cry - loud nose [aanrr] , [yaaorrr] , [yaarrr] ([Syroechkovskiy], [Rogacheva], 1995).
Places of inhabiting. It populates small reservoirs in the forest and forest-steppe zones, small and [starichnye] lakes in the floodlands of large rivers. In the taiga zone it nests in the deaf taiga lakes. Little it is careful, but it nevertheless falls rarely on eyes.
Nourishment. There is no information for the edge on the nourishment of [krasnosheynoy] toadstool. In other parts of the area the aqueous insects compose the basis of nourishment: the larva of caddis flies, chinches, gnats, adult beetles, chinches the rest ([Kurochkin], 1982). Like the majority of toadstools, assembles fodder in the thickness of water, diving; it catches insects, after immersing into the water head and neck, or it pecks up from the plants and surface water ([Syroechkovskiy] and other, 2000). Number and the limiting factors. On the steppe reservoirs is encountered somewhat thinner frequent than [chernosheynaya] toadstool, but total number, taking into account its wider and more uniform propagation, probably, considerably more. For example, at Lake. [Intikol] of Novoselovskiy of region from 1995 until 1999. the number of these toadstools comprised: [chernosheynoy] - 20, 15, 11, 25, 135 individuals, [krasnosheynoy] - 10, 2, 5, 2, 56 individuals respectively. Density on the right-bank part r. of the Yenisey in the Kansk and foothill part of the Minusinsk of basins on corresponding type reservoirs reaches 1-2 individuals to [km]2. Young birds are encountered in the south of edge to the middle of September. The reasons for reduction in the number are not clear. Apparently, in essence, this anthropogenic mastery of southern taiga and [podtaezhnykh] reservoirs (hay mowing, pasturing cattle the rest), and also the factor of uneasiness ([Syroechkovskiy] and other, 2000). |
![Adult bird in spring and downy nestling (Fig. [V].[V]. Of [bakhtin])](img/img_poau.gif)
![Area and rendezvous point in by Krasnoyarsk edge and [Khakasii]](pict/map_poau.gif)
Propagation. It is encountered in the southern part of the edge, where rarely nests in the southern taiga, [podtayge], wooded plain and steppe. In the pond r. of the Yenisey it reaches 61° N ([Stepanyan], 1990). These are more taiga form than other toadstools. According to the observations [A].[F]. of Cotes, at the beginning XX v. it was usual in The [achinskom] district, where it was encountered more frequently than [chomga]. [P].[P]. Of [sushkin] also found it by usual in the western part of the Minusinsk edge (in the limits of taiga) and in the environments it was Minusinsk. In the mountains and the eastern part of the Minusinsk basin [P].[P]. [Sushkinym] (1914) it is not encountered. We noted on the reservoirs [nizkogorya] and of [srednegorya] of Western [Sayana] as extremely rare bird, although in The [todzhinskaya] basin it is sufficiently usual. Are in recent years noted the flying iies of [krasnosheynoy] toadstool on r. to the Yenisey to the north, into the taiga zone to 62° N ([Rogacheva], 1988).
Multiplication is studied weakly. In the limits of edge it nests by separate pairs or with small groups of 2-3 pairs. Nests builds from the extinct aqueous plants, fastened by silt and by algae, floating or [poluplavuchie] in the coastal brushwood of sedge, sometimes on the hummocks. Laying of 2-5 purely white eggs, which toward the end hatching become brown- brown, being colored from the moist jack spreading. Nestlings appear in THE III decade period of June and they become independent approximately in 1,5 months. In the taking out on 2-4 nestlings ([Syroechkovskiy] and other, 2000). [Back] |
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