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Arctic tern |
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Arctic ternTern species (Sterna paradisaea) that makes the longest annual migration of any bird. It breeds in the southerly reaches of the Arctic and winters in the Antarctic, making its migration a round-trip of nearly 22,000 mi (over 35,000 km). Its appearance—white with a black cap and grayish wings—is similar to that of the common tern (S. hirundo), its frequent companion. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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When she and her colleagues compared the 1984 estimates to the 1989 through 1991 surveys, population declines at oiled sites appeared to exceed those at unoiled sites among loons, harlequin ducks, scoters, black oystercatchers, Arctic terns, and mew gulls. |
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