Nebraska mammals

Plains Harvest Mouse in Nebraska

Reithrodontomys montanus

Native to Nebraska S4 Apparently Secure in Nebraska

Not listed as nonindigenous in Nebraska by USGS NAS; native to its Nebraska range.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

Plains harvest mouse close-up among dry grass stems and twigsPlains harvest mouse facing the camera in dry grassPlains harvest mouse peering through grass stemsPlains harvest mouse climbing on rough tree bark
Photo: Carlos A. Armenta · CC BY-SA 4.0Plains harvest mouse close-up among dry grass stems and twigsPhoto: Carlos A. Armenta · CC BY-SA 4.0Plains harvest mouse facing the camera in dry grassPhoto: Carlos A. Armenta · CC BY-SA 4.0Plains harvest mouse peering through grass stemsPhoto: Carlos A. Armenta · CC BY-SA 4.0Plains harvest mouse climbing on rough tree bark

Plains Harvest Mouse in Nebraska, by the numbers

Occasional in Nebraska 58th most recorded of 95 mammals logged in Nebraska

14 occurrence records
6 with iNaturalist photos
Oct 11, 2025 Last seen in Nebraska

Records from 2000–2026.

When to look for the Plains Harvest Mouse in Nebraska

Most sightings fall in July.

14 Nebraska occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence. Based on a small number of dated records; the seasonal pattern may not be representative.

Monthly Nebraska records (table)
MonthRecords
January0
February0
March0
April1
May1
June2
July5
August0
September0
October3
November0
December2

Monthly plains harvest mouse occurrence records (iNaturalist and GBIF) in Nebraska, 2000–2026.

Seasonality

Year-round in Nebraska, with recorded sightings peaking in July, with a smaller rise in October.

Occurrence map

Where Plains Harvest Mouse has been recorded in Nebraska

14 records mapped · zoom and drag to explore

14 Nebraska records mapped

Where it's recorded in Nebraska

CountyRecords
Buffalo County 5
Nemaha County 4
Garden County 3
Scotts Bluff County 1
Hall County 1

The complete county distribution, spread across 5 Nebraska counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Plains harvest mice carry a NatureServe S4 apparently secure rank in Nebraska, and the record leans heavily toward GBIF (12 of the state’s 14 records) over iNaturalist (6), since this tiny grassland mouse is far more often caught in a trap than photographed.

July holds 5 of the year’s 14 dated records and October 3, with nothing at all from January through March, a scatter too thin to separate the mouse’s own activity from when someone happened to set traps.

Occurrence data from iNaturalist and GBIF.

Plains harvest mouse close-up among dry grass stems and twigs
Full species profile Plains Harvest Mouse Reithrodontomys montanus Size 7.6 cm3 in Weight 10 g0.4 oz View the full profile

More mammals in Nebraska in the atlas

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • NatureServe ExplorerCC-BYthe state conservation rank
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries