Nelson’s pocket mouse turns up in the rocky, sparsely vegetated country of the Edwards Plateau and Trans-Pecos, including sites like Balcones Canyonlands National Wildlife Refuge, the Hill Country, and Devils River State Natural Area. It forages for seeds at night and spends daylight hours underground in a burrow, a pattern suited to the region’s dry, rocky ground and thin shrub cover.
With 371 records, this species has one of the better-documented patterns among Texas’s small mammals, and it shows a real signal: October is the strongest month with 74 records, July and September each show 48, and December drops to just 3. That’s still a record of when people were out looking and reporting, not a direct count of pocket mice, but a spread this wide across many months points to genuine year-round activity rather than a single narrow season.
Nearly all of the records come from GBIF rather than iNaturalist, which suggests survey or museum-style data collection drove most of the reporting here, not casual observation.
