House mice are introduced commensal rodents in Nebraska, and NatureServe’s SNA rank, not applicable, reflects that introduced species don’t receive a state conservation status. The record leans heavily toward GBIF (156 records) over iNaturalist (37), suggesting trapping surveys, not casual sightings near buildings, drive most of what’s documented about this species here.
Records show two sharp spikes, April (36) and November (30), together more than a third of the year’s total, a pattern that likely reflects concentrated trapping efforts in those months rather than any real seasonal surge, since house mice breed indoors year-round regardless of outside conditions.




