IDENTIFICATION OF MALE EUPHAGUS BLACKBIRDS IN FRESH FALL PLUMAGES

Abstract

Distinguishing the two species of blackbirds of the genus Euphagus represents an identification challenge in North America. Many field guides (e.g., Dunn and Alderfer 2008, Crossley 2011, Sibley 2014) address this problem, but some intermediate plumages are not well covered by the literature or in depictions in field guides.