Pigeons fluttered in and out, cooing gently.

鸽子咕咕地叫着，拍打着翅膀飞进飞出。

Then the pigeons flew into thick fog, and the famous homing instinct failed.

然后这些鸽子飞进浓雾中，著名的归巢本能失灵了。

It is difficult to train pigeons to escape from a certain situation by pecking.

训练鸽子通过叼啄来脱离某种情境是很困难的。

The Germans bring in these falcons to kill pigeons; so this was another reason for them, these poor little pigeons who became the sort of sacred bird.

德国人带来了这些猎鹰，用以捕杀鸽子；因此这是他们的另一个原因，这些可怜的小鸽子变成了神圣的鸟。

The Wood-pigeons said, "Coo!"

那些斑鸠说：“咕！”