If there's a lot more non-native birds, there's a lot more non-native bird nests.

“如果非本土鸟类数量增多，那非本土鸟类巢穴也会增加。

Birds have a very good sense of direction.

鸟类方向感很好。

Black Canyon is home to many kinds of birds.

黑峡谷是许多鸟类园。

We were studying bird behavior at the time.

当时我们正在研究鸟类行为。

The feathers are the things that a bird has that covers its skin.

羽毛覆盖在鸟类皮肤上。

Kind of done with birds for the day.

我今天受够鸟类气了。

What are the two main types of bird flight described by the author?

作者描述鸟类主要飞行方式是什么？

Humans have always been a little jealous of birds at least to an extent.

人类对鸟类羡慕由来已久。

Gross! Even grosser? Birds' eyes. Clarence Birdseye, to be precise.

恶! 更恶心？鸟类眼睛。确切地说，Clarence Birdseye。

Many other birds have two vibrating membranes within this organ.

许多其他鸟类鸣管有个振动膜。

I don't know what evolution was thinking with birds.

我不知道进化是怎么看待鸟类。

And to help him – a bird-scaring kite.

协助他道具是一只用来吓走鸟类风筝。

Learned of every bird its language.

学会了所有鸟类语言。

It is a perfect place for some rare birds.

它是一些稀有鸟类完美居住地。

Being feathered, it and its kind were cousins to birds.

这一恐龙身着羽毛，是鸟类近亲。

The weasel refused, saying that he was by nature the enemy of all birds.

鼬鼠拒绝了，说他是任何鸟类天敌。

To see if it helps to have a bird's-eye view.

实验目是看看鸟类视角是否能提供帮助。

The new names will describe the birds' habitats or physical features.

新名称将描述鸟类栖息地或物理特征。

Flying is a common feature of birds but it's not a necessary feature.

飞翔是鸟类共同特征，但不是必要特征。

It's a good place for spotting unusual birds, isn't it'?

那是个看罕见鸟类好地方，对吗？