Rocky Mts, Cascade Mts and isolated ranges of western North America from south-western Canada (eastern slopes of interior British Columbia, southern and east through mountains of south-western Alberta), southern in USA to central and eastern Washington and Olympic Peninsula, Idaho, Montana, Wyoming, western and north-eastern Oregon (likely across the state), northern and east-central California, Nevada, Utah and Colorado to southern California, Arizona and New Mexico; also, in northern Mexico, irregularly occurring population in Sierra San Pedro Martír (northern Baja California) and isolated population at Cerro Potosí (Nuevo León).
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 1,000,000 (2010).
Clark's Nutcracker (Nucifraga) [XC294245]
by Frank Lambert from Grand Teton National Park, Lupine Meadows Trail, Teton County, Wyoming, United States (call)
Clark's Nutcracker (Nucifraga columbiana) [XC394915]
by Lance A. M. Benner from Lake George, Mammoth Lakes, Mono County, California, United States (call)
Subspecies
No subspecies.
Probably derived from a Siberian form of Northern Nutcracker (Nucifraga caryocatactes) which crossed the Bering land-bridge, perhaps as relatively recently as 1.5-2 million years ago.
BirdLife International Species Factsheet