In the north of Iceland, kittiwakes are taking the plunge.

冰岛北部一群三趾鸥扎进水中。

They have managed to surround the kittiwakes.

成功将三趾鸥包围。

Kittiwakes and puffins are birds of the open ocean, but they come ashore to breed.

三趾鸥和海雀一般开放海域活动，不要来到岸边繁殖。

But the puffin chicks have now fledged along with the Guillemots and kittiwakes. This is a new beginning for them.

不海雀幼雏已经羽毛丰满了，海鸠和三趾鸥也一样。这是新的起点。

Guillemots also nest here. They often mingle with kittiwakes and high density breeding colonies, sometimes exceeding 100,000 pairs.

海鸠也这儿筑巢。经常和三趾鸥以及高密度的鸟群混一起，有时数量超十万对。

Kittiwakes lay two eggs on average, but only half the young will survive, fed on regurgitated food ferried in a relay by both parents.

三趾鸥平均产两枚蛋，但只有半数的幼雏能够存活，的双亲轮流捕食回来后再反刍喂给。