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Flight speeds of swifts (Apus apus): seasonal differences smaller than expected
We have studied the nocturnal flight behaviour of the common swift (Apus apus L.), by the use of a tracking radar. Birds were tracked from Lund University in southern Sweden during spring migration, summer roosting flights and autumn migration. Flight speeds were compared with predictions from fligh...
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| Main Authors: | , , , , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
The Royal Society
2009
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2690467/ https://ncbi.nlm.nih.gov/pubmed/19324733 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1098/rspb.2009.0195 |
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