Parus atricapillus occidentalis (Baird.).
A common resident west of Cascades.
346. Mountain Chickadee.
Parus gambeli (Ridgw.).
East of Cascades to Rocky Mountains, and south through Okanagan.
347. Columbia Chickadee.
Parus hudsonicus columbianus (Rhoads).
East of Cascades to Rocky Mountains, from Cassiar District south to
Okanagan.
348. Chestnut-backed Chickadee.
Parus rufescens (Towns.).