Maybe it was the birds.

也许是鸟吃掉了。

And we saw some birds.

我们看到了几只鸟。

Look at the birds up in the sky!

看天上的鸟！

Will you feed the birds, please?

你能喂鸟吗？

How many birds do you see?

你看到了多少只鸟？

How many birds can you see?

你能看到多少只鸟？

Birds can fly in the sky.

鸟可以在天空中飞翔。

Are there any birds in the park?

公园里有鸟吗？

I also read books about birds.

我还读了关于鸟的书。

How many birds are in the picture?

图片里有多少只鸟？