Animals belonging to birds include canaries, ostriches, turkeys, sparrows, crows, Chinese Pulsatilla, kingfishers, penguins, hummingbirds, cuckoos and peacocks.

The characteristics of birds and beasts: the body is like a hammer; The whole body is covered with feathers, and the down is born under normal feathers, keeping the body temperature constant, and the body temperature is as high as 42℃; Hollow bone, lose weight; No teeth, horny beak; The large intestine is extremely short, without bladder, and feces are discharged from the cloaca at any time; There are airbags and lungs, double breathing.

Birds are oviparous vertebrates, and their feathers cover almost the whole body. There are about 156 families and more than 9,000 species of birds in the world. There are 8 1 family (accounting for 5 1.9%) and 1244 species in China, accounting for 13% of the total number of birds in the world.