BIRDS in Kannada Preschool Learning - YouTube.
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The popularity of picture windows, patio doors and double glazing has led to many injuries and fatalities among birds which fly into them. If you find a bird that has flown into a window, it may have suffered from concussion and could have internal injuries. Broken wings or legs are rare. Give the.
Birds are a group of warm-blooded vertebrates constituting the class Aves, characterized by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.Birds live worldwide and range in size from the 5 cm (2 in) bee hummingbird to the 2.75 m (9 ft) ostrich.There are about ten thousand living species.
As of December 2019, the International Union for Conservation of Nature (IUCN) lists 461 endangered avian species. 4.1% of all evaluated avian species are listed as endangered. No subpopulations of birds have been evaluated by the IUCN.
Many birds are brown, green or grey. These colours make a bird harder to see; they camouflage the bird. Brown is the most common colour. Brown birds include: sparrows, emus, thrushes, larks, eagles and falcons and the female birds of many species such as: wrens, ducks, blackbirds and peafowls.When a brown bird is in long grass or among tree trunks or rocks, it is camouflaged.
Birds are vertebrate animals adapted for flight. Many can also run, jump, swim, and dive. Some, like penguins, have lost the ability to fly but retained their wings.
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