Birds are our human friends. They add a lot of fun to our life.
There are no birds on the earth, and human beings will suffer disasters. Some harmful insects and small animals will breed many offspring and eat the lush trees and the green grassland. The animals on earth and us will lose our food.
The owl is a "rat catcher". It has a pair of eyes like a copper bell. It can see very small things at night. It also has a pair of ears that can hear small sounds. It can catch 1000 voles in a summer.
The woodpecker is a "forest doctor", with a steel mouth like a stethoscope. By tapping the trees to listen to the sound, you can accurately judge and catch pests. There are many good birds like this.
Therefore, each of us should be responsible for taking good care of birds and our friends.