Nestling aggression in broods of a siblicidal kingfisher, the laughing kookaburra
Third-hatched nestling in broods of the laughing kookaburra (Dacelo novaeguineae) are often killed by aggressive attacks from their older siblings within days of hatching. By installing surveillance cameras inside nest hollows, we examined nestling aggression over the "siblicidal" period, in particular to identify whether parental behavior and competitive disparities between nestlings affected aggression, and hence the likelihood of siblicide. Aggression decreased as nestlings aged and...[Show more]
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