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- Title
Endogenous migratory behaviour in a diurnally migrating songbird.
- Authors
Stey, Kim; Röseler, Dennis; Bairlein, Franz
- Abstract
Migratory restlessness has been studied intensively in bird species that migrate nocturnally. However, such studies are rare for diurnal migrants. For the first time, we used a twin activity recording design to study the migratory restlessness of a diurnal migrant, the Linnet Carduelis cannabina, by distinguishing foraging activity from possible migratory activity. Hand-reared naïve Linnets kept under controlled indoor conditions with a constant photoperiod showed significantly increased diurnal activity, body mass and feeding activity during the autumn migratory period of wild conspecifics. Nocturnal activity was absent. These results imply that diurnal short- to medium-distance migratory songbirds possess endogenous control over their migratory behaviour, similar to nocturnal migrants. Compared to long-distance nocturnal migrants, the seasonal increases in body mass of the Linnets were moderate, likely reflecting their shorter migration routes, which are traversed as a series of short flights with plenty of foraging opportunities en route.
- Subjects
MIGRATORY restlessness; MIGRATORY birds; FALCONIFORMES; ACANTHIS cannabina; BODY mass index
- Publication
Journal of Ornithology, 2017, Vol 158, Issue 3, p717
- ISSN
2193-7192
- Publication type
Article
- DOI
10.1007/s10336-017-1440-0