Poultry or birds (including chicken, duck, goose, pheasant) classified in the phylum chordates. I Aves with general appearance is a bipedal animals. Warm blood had puppies as eggs. Double front limb changes a wing, feather and bone hollow light.
At present all over the world have about 8 800 to 9 800,, type. 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.
Birds are animals with great importance both on ecology and human life. The relationship between man and bird is tight. And the synergism between birds and everything. Naturally it is tight if without the birds. It would be hard to imagine the existence of next biosphere leaves.