Poecile rufescens

The Chestnut-backed Chickadee is a small chickadee with a dark head, white cheeks and a rich chestnut back. It is closely associated with moist conifer forests along the Pacific coast. The species searches bark and foliage for insects and also eats seeds. It stores food in crevices and joins mixed-species flocks outside the breeding season. Pairs nest in cavities and line them with soft plant material and fur.
Locations where this species is supported by a dated first record, an unambiguous single-place outing or a reviewed assignment.