Saturday, September 24, 2011

Бекаса (Gallinago gallinago)

Gallinago is a genus of birds in the wader family Scolopacidae, containing 16 species. This genus contains the majority of the world's snipe species, the other three extant genera being Coenocorypha, with two species, and Lymnocryptes, the Jack Snipe. Morphologically, they are all similar, with a very long slender bill and cryptic plumage. Most have distinctive displays, usually given at dawn or dusk. They search for invertebrates in the mud with a "sewing-machine" action of their long bills.

Friday, September 16, 2011

Gadwall

The Gadwall is 46–56 cm (18–22 in) long with a 78–90 cm (31–35 in) wingspan.[2] The male is slightly larger than the female, weighing on average 990 g (35 oz) against her 850 g (30 oz).[3] The breeding male is patterned grey, with a black rear end, light chestnut wings, and a brilliant white speculum, obvious in flight or at rest.[4] In non-breeding (eclipse) plumage, the drake looks more like the female, but retains the male wing pattern, and is usually greyer above and has less orange on the bill.
The female is light brown, with plumage much like a female Mallard.

Northern Pintail (Shilaxvost)

The Pintail or Northern Pintail (Anas acuta) is a widely occurring duck which breeds in the northern areas of Europe, Asia and North America. It is strongly migratory and winters south of its breeding range to the equator. Unusually for a bird with such a large range, it has no geographical subspecies if the possibly con-specific Eaton's Pintail is considered to be a separate species.

This is a fairly large duck, with a long pointed tail that gives rise to the species' English and scientific names. The Northern Pintail's many names describe the male's two long

Green-winged Teal

 The Green-winged Teal (Anas carolinensis) is a common and widespread duck that breeds in the northern areas of North America except on the Aleutian Islands. It was considered conspecific with the Common Teal (A. crecca) for some time but the issue is still being reviewed by the American Ornithologists' Union;[1] based on this the IUCN and BirdLife International[2] do not accept it as a separate species at present. However, nearly all other authorities consider it distinct based on behavioral,[3] morphological,[4] and molecular evidence.[5][6]

Mallard (Kryak, krnchan)

 The Mallard is 56–65 centimetres (22–26 in) long (of which the body makes up around two-thirds), has a wingspan of 81–98 centimetres (32–39 in),[8] and weighs 0.9–1.2 kilograms (32–42 oz). The breeding male is unmistakable, with a bright bottle-green head, black rear end and a yellowish orange (can also contain some red) bill tipped with black (as opposed to the black/orange bill in females). It has a white collar which demarcates the head from the purple-tinged brown breast, grey brown wings, and a pale grey belly. The dark tail has white borders.[9] The female Mallard is a mottled light brown, like most female dabbling ducks, and has buff cheeks, eyebrow, throat and neck with a darker crown and eye-stripe.[9] However, both the female and male Mallards have distinct purple speculum edged with white, prominent in flight or at rest (though temporarily shed during the annual summer moult). Upon hatching, the plumage coloring of the duckling is yellow on the underside and face (with streaks by the eyes) and black on the backside (with some yellow spots) all the way to the top and back of the head. Its legs and bill are also black. As it nears a month in age, the duckling's plumage will start becoming drab, looking more like the female (though its plumage is more streaked) and its legs will lose their dark gray coloring.[9] Two months after hatching, the fledgling period has ended and the duckling is now a juvenile. Between three to four months of age, the juvenile can finally begin flying as its wings are fully developed for flight (which can be confirmed by the sight of purple speculum feathers). Its bill will soon lose its dark gray coloring and its sex can finally be distinguished by three factors:[citation needed]