Previously placed in genus Acanthis. Relationships with closely related C. flammea complex, and in the past was considered either a colour morph or a race of that species, but differs in measurements, structure and plumage, and breeding ranges overlap widely with little or only occasional interbreeding; evidence from mitochondrial DNA suggests that the two, together with C. cabaret, are probably best regarded as closely related sister-species or forming a superspecies; despite wide genetic variation within their ranges, however, recent studies have found little support for lineage division between arctic-breeding and boreal-breeding redpolls, and comprehensive review of gene flow still required in order to determine species limits; pending conclusions of any review, may need to be reclassified within Acanthis. Present species hybridizes with C. flammea in N Norway. Two subspecies recognized.
Food and feeding
Status and conservation
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!