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 During courtship males and females of some species of birds arrange contests in peculiar running on the surface. Such a ceremony there is a diver and some poganok. Dating game is spectacular, composed of various rapidly successive Pos. Apotheosis presentation are "races" - male and female, to squeeze together, lifting up the head and neck vytyanuv quickly perebiraya lapami, run on the surface. Keep on the surface they have succeeded thanks to quick movement. Ran a few dozen meters, they are noisy flop into the water. The same demonstration, but even more spectacular can be seen from the western grebe (Aechmophorus occidentalis), living in North America. When these fungus flee the water, their long necks vygnuty in Latin letter S. | | Record for immersion |
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  Absolute record of the depth of immersion, no doubt, are penguins. Deeper all nyryaet the biggest of them - Imperial. Experimentally proved his dive to 265 meters, but unverified data, these birds can zanyrivat and 400 meters! The closest relative of the Emperor penguin, a minor royal penguin, plunged to 235 m. | | The main maneuvers |
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 When the penguins, going after fish, slipping in the water with astonishing ease and carry forward one's hand in the field, it unwittingly begs comparison with the flight of low flying swallows. It is amazing to finesse with which the penguins can suddenly change direction. In this bird is helping its ability to immediately stop even under the most rapid movement in the water, putting plumb their flippers. | | It turns |
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The largest extinct bird - Dromornis stirtoni, living in Australia, had a mass of 454 kg and growth 3 pm | | "Born in the sky" |
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 Some of the most astonishing birds settle our city - black Swift. The greater part of their lives they spend in the air to chase for the flying insects. Letuny active, they can not only run, but even to walk. Their legs are so weak and short that accidentally upavshy to land swift no longer able to rise to the wing. Swift satisfied with their nests in schelyah and niches of high buildings, the roofs of houses in the suburbs of occupied nesting box (often driving them from sparrows), sometimes up residence in tree hollows. | | ... and know how to dive |
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 Usually believe that vorobinoobraznye, zaseliv virtually our entire planet, not only were able to conquer the watery element, leaving it to representatives of other orders. But it's not strictly true. In the fast-running mountain rivers across the Northern Hemisphere can see a small chunk of dark birds sitting on torchaschih out of the water rocks and periodically nyryayuschih in turbulent flows.
This is a dipper or, as they are called, water Sparrow. They swim well and nyryayut, which can run on the bottom. Under water, they finds its food: molluscs, crustaceans, insects and their larvae. Dipper can just dive in fast-running water, which presses the bird to the bottom, davya rotated on special wings. Length of stay under water is typically 15-20 seconds, during which time dipper able to run in the bottom of up to 20 meters. | | Beak-harpoon |
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 Most birds that feed on fish, catch it with a beak, clamping prey in its beak or zacherpyvaya in the guttural pouch, as pelicans. But one group of fish-eating birds use their beak like this garpuny. This darter, a large, temnookrashennye birds belonging to the group of pelikanoobraznyh. Three species of birds live on the banks of small freshwater and brackish waters throughout the tropics. Attribute zmeesheek - long, thin neck with a special joint between the 8 th and 9 th cervical vertebrae, which allows these birds to cause severe damage delicate and sharp beak. Darter good swim and nyryayut.
Hunting darter usually floats so that the body submerged and only visible from outside the head and neck. The neck all the time bends from side to side and curling like zmee. Noting fish, poultry nyryaet tunic and her under water two polovinkami poluraskrytogo beak. Vynyrnuv, darter toss prey into the air and ingested it. | | Used materials: |
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Il'ichev VD, Kartashov NN, Shilov IA Overall ornithology. Moscow: High School, 1982. 464 pp.
Mosalov AA, Shitikov DA Birds and animals. Moscow: ACT, 2000. 160 pp.
State Darvinovsky Museum
Encyclopedia Krugosvet | |
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