Deer mice are one of the most widespread native rodents in North America, and Idaho’s 74 records trace the wetland edges of Deer Flat and Camas national wildlife refuges and brush along the Snake River corridor, ground this mouse forages across at night while staying hidden from hawks and owls by day.
Records climb into a June peak, roughly ten times the January low, tracking spring breeding activity and dispersing young becoming active above ground. Unlike many of Idaho’s small mammals, most of this species’ records come from iNaturalist rather than GBIF specimens, an unusual split for a nocturnal mouse that’s typically documented through trapping surveys instead of photographs.
Full species profile
