tern

三个一组, [鸟]燕鸥英释中释na black and white sea bird that has long wings and a tail with two points

1 The tiny arctic tern makes the longest migration of any animal in the world, flying about two times farther than previously thought, a new study says..一项新的研究表明，小小的北极燕鸥竟创下了动物世界的飞行记录，“旅途”长度是此前相关数据的二倍。

2 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..当军舰鸟发现一只燕鸥或者鹈鹕准备冲入水中捕鱼时就猛冲下去，在捕鱼的鸟离开海面时抓住它们，这可能就是这种鸟为何解决到石油的原因。