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DistributionThe Clark's nutcracker is distributed from central British Columbia and western Alberta southward to Arizona and New Mexico . In years of poor conifer cone crops, individuals may wander irregularly outside the breeding range, occurring eastward onto the Great Plains, south to northern Baja California, west to the Pacific Coast, and north to Alaska . A stable but isolated population on Cerro El Potosi, Nuevo Leon, (mainland) Mexico is considered the most southerly extension of the Clark nutcracker's range . NatureServe provides a distributional map of the Clark's nutcracker.