Birds

INTRODUCTION web centre U Find the best online information about Bird. Encarta Editors Choices Introduction to the Aves The Ornithology WebSite Common Birds of the Australian field of study Botanic Gardens more... Bird, common name for any member of the gradation of craniates that contains animals with feathers. All adult birds gather in feathers, although some species, such as peli give notices, kingfishers, woodpeckers, and jays, argon completely b atomic number 18-assed when hatched. Ostriches Native to Africa, the ostrich, Struthio camelus, is the outsizedst live species of bird, gro lengthiness to a acme of approximately 2.4 m (8 ft) and a weight of 150 kg (330 lb). Although flightless, the ostrich can impart at speeds as broad(prenominal) as 65 km/h (40 mph). Highly adaptable, ostriches can be found brisk in mountainous aras, pass around savannah, or sandy forego plains. They have omnivorous sustenance habits, eating grass, the foliage of t rees and bushes, and any small invertebrate and vertebrate animals they can chase down.Stan Osolinski/Oxford scientific Films Birds share certain features with mammals, such as warm-bloodedness and a four-chambered heart. Nevertheless, birds are distinct, having evolved from dinosaurs long after the mammal and reptilian groups diverged.

All birds give care most reptiles and a few primitive mammalsdevelop from embryos in eggs foreign the mothers organic structure. Unlike most reptile eggs, those of birds have hard shells, which are very strong in coarse birds and rather toffy in small birds. II name AN D PHYSIOLOGY Pigeon in career A bird mo! ves its move in two moods during kerfuffle flight. The part of the wing closest to the birds body moves up and down. Simultaneously, the tip of the wing moves in a placard motion, propelling the bird forward. The way a bird fly depends on the shape of its wings. closely small birds flap their wings the entire time they are airborne, while gulls and other large birds with long, pointed wings soar or glide. The fastest fliers have sharply...If you motive to get a ample essay, order it on our website: BestEssayCheap.com

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