Arctic tern
US /ˈɑːrk.tɪk tɜːrn/
UK /ˈɑːrk.tɪk tɜːrn/
1.
a seabird, Sterna paradisaea, that breeds in the Arctic and migrates to the Antarctic, having the longest migratory route of any bird
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The Arctic tern has the longest migratory route of any bird.
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We spotted an Arctic tern during our expedition to the polar regions.