Canyon mouse is a rock-dwelling desert specialist that lives among boulders, cliff bases, and canyon walls across much of Arizona, and its occasional-tier ranking reflects a genuinely nocturnal animal rather than a scarce one. Records come mostly from trapping surveys and the rare night photograph.
Two loose peaks, March–April and August–September, likely track spring and late-summer survey and monsoon activity more than a clean seasonal rhythm; a small nocturnal mouse threaded through rock crevices is easy to miss even when locally common.
Full species profile
