求一首英文小诗

The Cuckoo 布谷鸟
-----by Mother Goose's Nursery Rhyme
In April,
Come he will,
In May,
Sing all day,
In June,
Change his tune,
In July,
Prepare to fly,
In August,
Go he must!
四月里,
它就来了,
五月里,
整天吟唱多逍遥,
六月里,
它在改变曲调,
七月里,
准备飞翔,
八月里,
它就得离去了!能告诉我 -----by Mother Goose's Nursery Rhyme 是什么意思吗作者是Mother Goose 鹅妈妈（传说中的英国童谣集作者），这是一首童谣