The birds. The general characteristics is a bipedal animals, breeding eggs. The limb, warm-blooded, double sided change tradition is the wings, feather and bone hollow light.At present all over the world have about 8 800 to 9 800,, type. (according to the taxonomy of different). Which is the bird is a class of vertebrates, are the most diverse. Among the class of vertebrates, who live on the ground. A variety of birds, counting from that body size, colorful, vocals, food and habitat.
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