当地的海鸥会贪婪地扑向这些施舍的食物，而燕鸥会继续飞行。
While local gulls will dive voraciously for such handouts, the tern flies on.
当他们让一只燕鸥或鹈鹕扔下一条鱼时，他们会一头栽到水里，然后把鱼从水面抓起来，这可能就是这只鸟被油弄脏的原因。
When they get a tern or pelican to drop a fish, they plunge down and grab it off the surface of the water, which may have been how this bird got oiled.
北极燕鸥之所以能不受这一分神因素影响，是因为那时它被一种本能感觉所驱动着，这种本能令人类十分钦佩，它叫做：“更远大的目标”。
The arctic tern resists distraction because it is driven at that moment by an instinctive sense of something we humans find admirable: larger purpose.
北极燕鸥是真正的长途迁徙者，它们在北欧沿海湿地筑巢，但会向南飞行数千英里，在南极洲度过欧洲的冬季。
Arctic terns, being true long-distance migrants, they nest in coastal wetlands of northern Europe but fly south for thousands of miles to spend the European winters in Antarctica.
北极燕鸥在从南美洲的最南端飞往北极圈的路线全长2万公里，但燕鸥这一路上都不会留意观鸟船送来的散发臭味却又可口的鲱鱼。
An arctic tern, on its 20,000 km flight from the extreme south of South America to the Arctic circle, will take no notice of a nice smelly herring offered from a bird-watcher's boat along the way.
那的的确确是马祖燕鸥，我看过它。
有一只被环志了的粉红燕鸥！
在春季，北极燕鸥沿着曲折的路线返回格陵兰群岛。
Arctic terns also follow a zigzagging route on their spring trips back to Greenland.
本地鸥会贪婪地冲向这些施舍，而北极燕鸥却会继续往前飞。
Local gulls will dive voraciously for such handouts, while the tern flies on.
海边上，一群孩子和矶鹞、燕鸥一起在水边嬉戏。
Children and sandpipers and terns played at the edge of the water.
在本世纪初消失已久的凤头燕鸥为人们再次发现，这真是可喜可贺。
The rediscovery earlier this decade of the Chinese crested tern, long thought extinct, was cause for celebration.
据了解，北极燕鸥是候鸟，主要分布于北极及北极附近地区。
The understanding is that the Arctic Tern is a migratory bird which is mainly found at the North Pole and surrounding regions.
对于生活在海岸边的海鸥、燕鸥和鸬鹚来说，选择错误的降落地点将带来致命的后果。
For many gulf coast gulls, terns and cormorants, this has been a lethal mistake.
举例来说，从火地岛前往阿拉斯加的北极燕鸥会无视蒙特利湾观鸟船送出的美味鲱鱼。
An arctic tern on its way from Tierra del Fuego to Alaska, for instance, will ignore a nice smelly herring offered from a bird-watcher's boat in Monterey Bay.
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。
In August of the second year, he found a handful of Chinese crested terns nesting among a colony of greater crested terns.
他解释到，燕鸥的飞行路线是以大气中螺旋风为根据，他们要尽量避免被风卷走。
The birds appear to be following huge spiraling wind patterns in the atmosphere, avoiding flying into the wind, he said.
我们还见到有些粉红燕鸥向南方飞去，我们感到很奇怪，为什么飞向南方呢，南方并没有陆地。
We also counted several roseate terns flying south - but why south, we wondered, when there is no land that way?
雌鸟与雌鸟配对在其他鸟类中并不是没有，如加利福尼亚海鸥和粉红燕鸥，但从来没有达到这么高比例。
Female-female pairings have been observed in other birds, such as California gulls and roseate terns, but never at quite such a high rate.
北极燕鸥一次往返的距离达3.2万公里，早已离开了我们的燕子现在正在非洲南端享受着太阳的温暖。
The Arctic tern completes a round trip of 32, 000km; swallows, which have already deserted us, will now be sunning themselves in the southern tip of Africa.
北极燕鸥一次往返的距离达3.2万公里，早已离开了我们的燕子现在正在非洲南端享受着太阳的温暖。
The Arctic tern completes a round trip of 32, 000km; swallows, which have already deserted us, will now be sunning themselves in the southern tip of Africa.
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