Terns usually live in coastal areas.

燕鸥通常生活在沿海地区。

We observed several terns by the sea.

我们在海边观察到了几只燕鸥。

This book introduces different types of terns.

这本书介绍了不同种类的燕鸥。

Arctic terns (北极燕鸥) travel the furthest when they migrate.

北极燕鸥迁徙时走得最远。

Fairy Terns are permanent residents.

塞舌尔白燕鸥是这里的永久居民。

Caspian terns from Japan nest on the sand.

来自日本的红嘴巨鸥在沙地筑巢。

Apparently they had a good time, but not the terns.

他们玩得很开心，但燕鸥会开心吗？

In August of the second year, he found a handful of Chinese crested terns nesting among a colony of greater crested terns .

在第二年的八月，他在大凤头燕鸥的繁殖地发现了很小一堆黑嘴凤头燕鸥的巢。

Before he went into it two Bridled Terns were staying there.

当人走进去之前曾有褐翅燕鸥在内（见下图）

A pair of noddy terns fly close together over the island on the reef.

一对白顶玄燕鸥在礁石岛上空比翼而飞。