Female canaries invest more in response to an exaggerated male trait

Females choose their mate on the basis of secondary sexual characters such as physical ornaments, courtship behaviours or vocalizations. In male birds, vocalizations are known to increase their attractiveness and consequently their probability of copulation. Moreover, male songs have been shown to shape maternal investment, particularly with regard to egg quality. Artificial manipulation of male […]

Urban noise undermines female sexual preferences for low-frequency songs in domestic canaries

Increasing levels of anthropogenic noise represent a challenge for animals living in urban areas and birds, especially, may suffer from noisy conditions as they use singing to attract mates. Most anthropogenic noise is low in frequency and singing at high frequencies under noisy urban conditions may avoid masking and thus be a good strategy for […]

You know what? I’m happy. Cognitive bias is not related to personality but is induced by pair-housing in canaries (Serinus canaria)

Recent studies suggest that cognitive bias could constitute a novel and valid measure of animal welfare. Although interest for a link between personality and cognition is growing, no study to date investigated whether a cognitive bias might be related to the personality of the individuals. We trained 43 domestic canaries (Serinus canaria) to discriminate between […]