Planet of Birds

Azure-winged Magpie (Cyanopica cyanus) Science Article 5 abstract The Azure-winged Magpie Cyanopica cyanus is a small sized corvid, weighing around 70g. This species has a remarkable distribution, occurring only in eastern Asia (China, Korea, Mongolia, Japan and Russia) and in south-western Europe, in the Iberian Peninsula Filipe CANARIO et al, Ardeola 49(2), 2002, 283-286 Download […]

Azure-winged Magpie (Cyanopica cyanus) Science Article 3 abstract Changes in the haematocrit in Azure-winged Magpies Cyanopica cyanus during the reproductiveperiod. Previous studies have suggested that the haematocrit could be related to a number of factors within the birds’ biological cycle. In this study, the variation found in the haematocrit of Azure-winged Magpies Cyanopica cyanus during […]

Azure-winged Magpie (Cyanopica cyanus) Science Article 2 abstract In this study, we investigated patterns of natural covariation between testosterone and reproductive status in a cooperatively breeding bird species, the azurewinged magpie (Cyanopica cyanus). To assess the relationship between testosterone and breeding behavior,we also manipulated testosterone (T) levels early in the season (before breeding started) using […]

Azure-winged Magpie (Cyanopica cyanus) Science Article 4 abstract Morphometric and genetic analyses were performed to investigate the relationships between populations of the azure-winged magpie (Cyanopica cyanus). In the morphometric analysis 193 specimens were included representing seven of the nine currently accepted subspecies. Among eight characters analysed, four showed significant differences between samples from Spain and […]