Chestnut-backed Chickadee

With their white cheeks and dark caps and throats,Chestnut-backed Chickadees look much like Black-capped Chickadees. However the caps of Chestnut-backs are brown rather than black, and their backs, shoulders, and sides are a deep chestnut color. They are also slightly smaller than Black-capped Chickadees. Males, females, and juveniles share similar plumage.