Grey Catbird (Dumetella carolinensis) Science Article 2
abstract
Polygyny occasionally occurs in passerine species that are generally socially monogamous.We document the second case of polygynous mating in the Gray Catbird (Dumetella carolinensis) and provide the first detailed account of this behavior.
Daniel Hanley et al., The Wilson Journal of Ornithology 119(3):499-502, 2007