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 Date: 2010-10-14 08:09:32Bird flight Bird migration Cities in Sweden Falsterbo Ertholmene Migration Bird Barn Swallow Swallow Ornithology Zoology Biology |
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| First Page | Document Content | |
|---|---|---|
Date: 2010-10-14 08:09:32Bird flight Bird migration Cities in Sweden Falsterbo Ertholmene Migration Bird Barn Swallow Swallow Ornithology Zoology Biology |
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How many diurnal migrants cross the Baltic Sea at night? Jan Kube1, Nils Kjellén2, Jochen Bellebaum1, Ronald Klein1 & Helmut Wendeln1