资讯

Birds make sounds to communicate, whether to find a potential mate, ward off predators, or just sing for pleasure. But the ...
When a bird sings, it can always be heard, even after it has moved out of sight. Sound travels in all directions; it can penetrate through or around objects. But how do birds produce such a ...
We've made a list of some of the most common garden birds. Why not get outside and see which ones you and your family can spot together? The robin is famous for its red breast and often features ...