Artificial Light at Night Promotes Activity Throughout the Night in Nesting Common Swifts (Apus apus)

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Twilight ascents by common swifts, Apus apus, at dawn and dusk: acquisition of orientation cues?

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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 flight mechanical and optimal migration theories. During spring, flight speeds were predicted to be hi...

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The tracking of small avian migrants has only recently become possible by the use of small light-level geolocators, allowing the reconstruction of whole migration routes, as well as timing and speed of migration and identification of wintering areas. Such information is crucial for evaluating theories about migration strategies and pinpointing critical areas for migrants of potential conservati...

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ژورنال

عنوان ژورنال: Scientific Reports

سال: 2019

ISSN: 2045-2322

DOI: 10.1038/s41598-019-47544-3