Phylogeny of the Waxwings and Allied Birds

"Phylogeny of the Waxwings and Allied Birds" by M. Dale Arvey is a scientific exploration of the waxwing family, Bombycillidae, using comparative analysis of coloration, anatomy, and behavior to determine the evolutionary relationships within this group of birds; the study seeks to discern whether certain traits are adaptations or inherited characteristics from older ancestors, based on a review of biological characteristics, which uses anatomical, ecological, and morphological data to evaluate the origins and adaptations of waxwings while considering the inclusion of other bird species in the waxwing family, suggesting a starting point in northern Mexico, in contrast to previously assumed northern beginnings.