" biirds of a feather flock"中“bird"的意思

题目

" biirds of a feather flock"中“bird"的意思
"bird"有多种意思,帮我翻译一下下列句子中“bird”的意思：
1.He eats like a bird.
2.Birds of a feather flock together.
3.A bird in the hand is worth two in the bush.
4.That's for the birds!
5.A little bird told me.

答案

2、鸟以群分（物以类聚）
3、一鸟在手胜过数鸟在林.
4、
5、小秘密.