Usually during June, the white birds would be watching their eggs as they begin to hatch.

通常六月开始孵化，它们会紧紧看守自己的鸟蛋。

Arctic terns begin their migration in the Northern hemisphere in the summer, which is breeding season.

北在夏开始在北半球迁徙，这是繁。

Skimmers get their name from their unusual feeding technique--their extended lower bill detects fish just below the water surface.

因它们独特的捕食技巧而命名——它们延伸的下喙可以探测出距离水面不深处的鱼。

It's ironic that this man-made car park made out of crushed oyster shell should become a substitute.

很讽刺的是，这个停车场充满了人造的牡蛎壳碎屑，现在却成为了的替代栖息地。

His ignoble resource, alas! is to attack a dull and timorous bird, the noddy, famous as a fisher.

唉，可叹啊，军舰鸟那不光彩的一面就是去攻击一只迟钝又胆小的鸟——以“渔夫”之名著称的。

Back in 2010, an international research team fitted tracking devices to birds they believed to be special — Arctic terns.

早在 2010 年，一个国际研究小组就在他们认为很特殊的鸟类——北身上安装了跟踪设备。

This journey is a round-trip of up to 35,000km long, which makes the Arctic tern's migration the longest of any bird.

这一往返旅程长达 35,000 公里，这使得北的迁徙是所有鸟类中最长的。

Skimmers raise their chicks on a fish diet. But they serve their portions whole which can cause problems for their young.

用鱼喂养它们的幼鸟。但是他们确是为大部分提供的，因此会对幼鸟产生不好影响。

His father showed him a white, woman-like figure among the frost pat-terns.

他的父亲在冰霜中向他展示了一个白色的女人般的身影。

Scientists are trying to boost the populations of three species: the bridled tern, brown noddy, and the Audubon's shearwater.

科学家们正试图增加三种物种的数量：白斑、褐和奥杜邦海。

But one species, the arctic tern, flies to northern Europe all the way from the Antarctic. No animal on earth migrates this far.

而有一种鸟类，北，却从遥远的南洲一路飞抵北欧，地球上没有任何动物能迁徙这么远。

But recent data from light-level geolocators show that terns actually travel more than twice as far each year, possibly to take advantage of prevailing winds.

但最近来自光级地理定位仪的数据显示，实际上每年的旅行距离是原来的两倍多，可能是为了利用盛行风。

This means that arctic terns can rack up over 2 and a half million kilometers of flight in a lifetime — enough for three round trips to the moon.

这意味着北一生可以积累超过 250 万公里的飞行距离，足够三次往返月球。

Another marathon migrator, the Arctic tern, has long been credited with the longest migration for its annual round-trip flight between the Arctic and Antarctic — an estimated 40,000 km in total.

另一种马拉松式的迁徙者——北，因其每年在北和南之间的往返飞行而长期被认为是最长的迁徙——估计总共有4万公里。