Moonlight influence on quality of nestlings of scops owls depends on paternal coloration

Jesús Avilés, Angel Cruz-Miralles & Deseada Parejo
The moon might favour the maintenance of colour polymorphism via disruptive selection if the different colour variants performed differently in terms of prey capture under different moonlight levels. Moonlight, however, may affect prey capture as a by side effect of its influence on prey behaviours. Here we combine data of parental provisioning and owlets' quality with one ex-situ study of grasshoppers' activity to test whether Eurasian scops owls (Otus scops) with different plumage colour and...
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