nature and cute birds..

Cute Birds Video Information:

Birds

Birds are a group of warm-blooded vertebrates constituting the class Aves, characterized by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Wikipedia

Birds are vertebrates (animals with backbones) with wings and feathers. Most birds can fly, using powerful muscles to flap their wings. But a few bird species do not have strong enough wings to …

The definition of a bird is a warm blooded member of the Aves class, which has feathers, a beak, no teeth, wings and bears young in eggs.

Birds are vertebrate animals adapted for flight. Many can also run, jump, swim, and dive. Some, like penguins, have lost the ability to fly but retained their wings.

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nature and cute birds..