A. Wilson, 1811,
two miles [3.2 km] north of Kamiah, on Clearwater River, Idaho, USA.
Probably derived from a Siberian form of N. caryocatactes which crossed the Bering land-bridge, perhaps as recently as 2–1.5 million years ago. Monotypic.
Rocky Mts, Cascade Mts and isolated ranges of W North America from SW Canada (E slopes of interior British Columbia, S & E through mountains of SW Alberta), S in USA to C & E Washington, Idaho, Montana, Wyoming, W & NE Oregon (likely across the state), N & EC California, Nevada, Utah and Colorado to S California, Arizona and New Mexico; also, in N Mexico, irregularly occurring population in Sierra San Pedro Mártir (N Baja California) and isolated population at Cerro Potosí (Nuevo León).
Food and feeding
Status and conservation
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