Birds птицы канаттуулар

Birds are animal with feathers. Because they can fly, they are the fastest animals on Earth. Some birds can reach speeds of up to 160km an hour. However, not all birds can fly. Some birds, like ostriches can run and penguins can swim.

There are about 10,000 kinds of birds. The smallest bird is the hummingbird which gets only about 5cm big and the largest one is the ostrich which may grow up to 2.5 metres tall. Birds live everywhere in the world—from the cold polar regions to the rain forests of Africa.

There are birds, like ducks or seagulls that always live near water. Many birds from colder areas migrate to warmer regions to avoid harsh winters, but others stay in their living area all through the year.