Birds of a feather flock together.物以类聚

　　Fine feathers make fine birds.人要衣装，佛要金装

　　A little bird told me that you win the prize.消息灵通人士告诉我你得了奖。

　　He is an old bird and you can’t take him in 他是个老练的人，你骗不了他。

　　A bird in hand worth two in the bush.一鸟在手胜过双鸟在林。

　　The early bird gets the the worm.笨鸟先飞/捷足先登

　　Kill two birds with one stone.一举两得

　　2、dog

　　Love me ,love my dog.爱屋及乌

　　Beat the dog befote the lion.杀鸡骇猴

　　An old dog will learn no new tricks.老顽固学不了新事物。

　　A good dog deserves a good bone.有功者受赏

　　cat- and- dog life.吵吵闹闹的生活

　　die like a dog.潦倒而死

　　dog days.三伏天

　　rain cat and dog.倾盆大雨

　　lead a dog’s life.过着潦倒的生活

　　treat someone like a dog.不把某人当人看

　　3、rat,cat,mouse

　　When the cat is away,the mice will play.山中无老虎，猴子称霸王

　　like a rat in a hole.瓮中之鳖

　　let the cat out of the bag.露马脚

　　as poor as a church mouse.一贫如洗

　　In public affairs he remained a mouse.在公事上他胆小如鼠。

　　A cat may look at a king.地位虽不同，人权应平等。

　　4、tiger,lion

　　His father is a great lion here.他父亲是这儿的一个名人。

　　The soldiers were tigers in fight.那些士兵英勇作战。

　　5、其他动物

　　dark horse.能力深藏不露的

　　put the cart before the horse.本末倒置

　　Have a wolf by the ears. 骑虎难下，进退两难

　　a big frog in the small pond小地方的大人物

　　parrot cry.人云亦云

　　fish in troubled watered.混水摸鱼/趁火打劫

　　a snake in the grass.阴险而伪善的朋友

　　a wolf in sheep’s clothing.伪装友善的人