On the behaviour and vocalizations of female Common Cuckoos Cuculus canorus at the host nest

Using direct observations of Common Cuckoo Cuculus canorus behaviour at 53 nests of three Acrocephalus host species, we recorded no vocal activity by females shortly before, during, or after egg-laying, which suggests that female bubbling calls during parasitism are not used as commonly as previously thought.

Automated summary

Direct observations of Common Cuckoo behavior at nests of three Acrocephalus host species showed no vocal activity by females shortly before, during, or after egg-laying, indicating that female bubbling calls during parasitism are not as common as previously believed.