Is there an ornithological reason for keeping them in separate cages?

I hate to see birds in cages.

我不愿意看到鸟被关在笼子里。

The birds smashed into the top of their cages in fright.

鸟儿惊恐地冲过去，撞到了笼子顶上。

Now they were both stuck in cages a dimly lit room.

现在他们都被关在这昏暗房间的笼子里.

Now they have special cages made to protect them from these monsters.

现在他们有了特制的笼子,用来保护他们免受大鱼的侵袭.

They freed the birds from the cages.

他们把鸟儿从笼子里放出来了.

The wild animals are confined in small cages in the zoo.

野生动物关在动物园的小笼子里.

He bought animals and released them from their cages.

他买下许多动物,把它们从笼子里放出来.

This zoo kept monkeys and giraffes in small cages.

这个动物园在小笼子里养猴子和长颈鹿.

Children growing up in gilded cages can not bear hardships.

在蜜罐儿里长大的孩子,往往不能吃苦.

The cages are different shapes. but all are pitifully small.

铁笼有不同的形状, 但全都小的可怜.

Some animals will not breed in cages.

有些动物在笼子里不产崽.

Special cages are made to protect them from giant fish.

为了保护他们免受大鱼的侵袭,人们做了特制的笼子.

After hanging up their cages they look for a place to sit.

他们先把鸟笼子挂好,找地方坐下.

He is cagey about what he was paid for the business.

他对自己在这桩买卖中所得的报酬不愿多提。

We can't play cagey and we have to go at them.

我们不能够小心奕奕地比赛,我们必须向他们作出反扑.

Federer, 27, was cagey on exactly when the baby is due, saying only in the summer.

27岁的费德勒没有透露孩子确切的预产期, 只是说在今年夏天.

Tony is very cagey about his family.

托尼对自己家的事讳莫如深。

And now , when the summer was over, Fabrizio became more and more cagey.

夏天结束了, 费比诺也变得越来越谨慎了.

He remained cagey as to whether he would let Parker leave.

谈到是否愿意让帕克离开时他出言谨慎.

The old recluse was very cagey about her past life.

老隐士对自己过去的生活守口如瓶.