phr. a bird in the bush 未到手的东西；未定局的事情
a bird in (the) hand 已到手的东西；已定局的事情
A bird in the hand is worth two in the bush. 〈谚〉一鸟在手可抵双鸟在林。
a little bird 消息灵通的人；暗中提供消息的人
A little bird told me you quarrelled this morning. 一个消息灵通的人对我说，今天上午你们吵架了。
I know all about it. I have a confidential little bird. 这事我全知道，我有耳报神。
birds of a feather 有共同志趣的人们；臭味相投的人们
We are birds of a feather. 我们志趣相投。
Birds of a feather flock together. 〈谚〉鸟以群分，物以类聚。
eat like a bird 吃得极少
for the birds 〈口〉没有趣味的；令人厌烦的；毫无价值的；荒唐可笑的
His book is strictly for the birds. 他的书根本不值一读。
Their opinions on art are for the birds. 他们关于艺术的见解荒唐可笑。
get the bird 〈英口〉
1. 被嘘，被喝倒彩
2. 被解雇
give sb. the bird 〈英口〉
1. 嘘某人，喝某人倒彩
2. 解雇某人
have a bird 〈美口〉感到非常震惊(或焦虑)
in bird 〈英俚〉在监狱中
It's an ill bird that fouls its own nest. 〈谚〉恶鸟渎巢。(指家丑不外扬)
kill two birds with one stone 一箭双雕，一举两得
like a bird 动作轻快地；毫不费力地；毫不犹豫地
Away he went like a bird. 他脚步轻快地走了。
He promised like a bird. 他毫不犹豫地随口答应。
The bird has (或 is) flown. 囚徒(或要捉的人)逃跑了。
the birds and (the) bees 〈口〉(可以对孩子们讲的)两性关系的基本知识