在动物世界中,除了人类之外,使用嗓子最多的就是鸟类。鸟的歌声是美妙的,鸟语花香的环境就是人们游乐的好场所。据动物学家研究分析,鸟鸣的声音一般分呼唤和歌声两种。鸟类在找寻食物或遇到敌人时,就用呼唤声来通知伙伴。公鸡找到食物时呼唤母鸡,和母鸡找到食物时呼唤小鸡,那叫声就是鸟类的呼唤声。 In the animal world, besides humans, birds are the most used. The bird’s song is wonderful, and the bird-like environment is a good place for people to play. According to research by zoologists, the sound of birdsong is generally divided into two categories: call and song. When a bird searches for food or encounters an enemy, it uses a call to notify the partner. When the rooster finds food, he calls the hen and when the hen finds the food, it calls the chick. The call is the bird’s call.