Birds are bipedal, warm-blooded, oviparous vertebrates characterized primarily by feathers, forelimbs modified as wings, and hollow bones.
Birds range in size from the tiny hummingbirds to the huge Ostrich and Emu..
For more information about the topic Bird, read the full article at Wikipedia.org, or see the following related articles:
Vertebrate Vertebrates are members of the subphylum Vertebrata (within the phylum Chordata), specifically, those chordates with backbones or spinal columns. ... >
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Whooping Crane The Whooping Craneis a very large crane. It is the tallest North American bird.
Adults are white; they have a red crown and a long, dark, pointed ... >
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Great albatross The great albatrosses are seabirds in the genus Diomedea in the albatross family. Great albatrosses are the largest of the albatrosses and are ... >
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Emu The Emu is the largest bird native to Australia and, after the Ostrich, the second-largest bird that survives today. Like all birds in the Ratite ... >
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