书城外语课外英语-动物亮丽风景线(双语版)
29218200000063

第63章 鸟的寿命有多长?

Most birds do not survive longer than one year.Many birds get sick and die.Some cannot find enough food.Some get eaten by other animals.

About one bird in ten lives longer than a year.Scientists are not sure how long birds can live in the wild.They think that many small songbirds live 3to 5years.But some albatrosses can live to be more than 60years old

Body of a Bird