Arcticterns, 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。
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Arcticterns also follow a zigzagging route on their spring trips back to Greenland.
在春季，北极燕鸥沿着曲折的路线返回格陵兰群岛。
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The striking drop in numbers round British coasts of such seabirds as arcticterns, kittiwakes, guillemots and puffins is probably a result of the disappearance of sand eels.