【BBC地球脉动】冰雪世界 3
Hint:
petrel
英式拼写
http://t1.g.hjfile.cn/listen/201303/201303101016259845760.mp3The cliff tops are soon stained pink with the droppings of tens of thousands of nesting penguins. Only in a land almost entirely covered in ice could bare rock be reckoned an oasis. Some will travel into the heart of the continent to find it. These are nunataks the exposed peaks of vast mountain ranges buried in ice over a mile deep. The eerie silence here is only broken in spring. The snow petrels have arrived and are courting. Antarctic petrels now join the most southerly bird colony on earth. The birds have flown inland for over 300 miles to reach this breeding site. Once their eggs have hatched they'll be forced repeatedly to make the 600-mile round trip to gather food in the ocean.悬崖顶上很快就遍布了粉色的小点。这是成千上万只准备在这里孵蛋的企鹅的粪便。在被冰雪完全覆盖的地方，岩石被视为生命的绿洲，一些企鹅一直要走到南极的深处才能找到这样的一片地方。这是冰原岛峰，即覆盖在冰层下面的巨大山脉的山峰，在这个世界里，可怕的寂静只有到春天才会被打破。雪鹱来了，它们正在寻找配偶，南极雪鹱来到了地球最南端的这块鸟类栖息地。为了繁殖它们飞过了大约五百公里来到这里，蛋孵化之后，它们又会一次又一次地到海洋里去寻找食物，每个来回将近一千公里。
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