Pinyon mice get their name from a habitat they barely touch in Oregon: the piñon-juniper woodland that dominates their range farther south and east. Oregon’s small, scattered population instead clings to rocky outcrops and juniper stands in the high desert near Malheur National Wildlife Refuge and John Day Fossil Beds National Monument, at the northwestern edge of the species’ overall range.
Records scatter thinly across the year with the largest single count in December and a smaller bump in July, too few and too uneven to describe a real seasonal pattern from just 10 iNaturalist and 91 GBIF records combined. NatureServe ranks the species S4, apparently secure, in Oregon, though its marginal position here likely means lower numbers than farther south.
Full species profile
