Oklahoma mammals

Western Deer Mouse in Oklahoma

Peromyscus sonoriensis

Native to Oklahoma

Not listed as nonindigenous in Oklahoma by USGS NAS; treated as native to its mapped Oklahoma range.

IUCN Red List status

NE – Not Evaluated

Not yet assessed against IUCN Red List criteria.

Western Deer Mouse in Oklahoma, by the numbers

Rare in Oklahoma 65th most recorded of 76 mammals logged in Oklahoma

20 occurrence records
15 with iNaturalist photos
Dec 16, 2025 Last seen in Oklahoma

Records from 2000–2026.

When to look for the Western Deer Mouse in Oklahoma

Most sightings fall in March.

20 Oklahoma 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 Oklahoma records (table)
MonthRecords
January0
February1
March6
April3
May2
June3
July2
August0
September1
October0
November1
December1

Monthly western deer mouse occurrence records (iNaturalist and GBIF) in Oklahoma, 2000–2026.

Seasonality

Year-round in Oklahoma, with recorded sightings peaking in March.

Occurrence map

Where Western Deer Mouse has been recorded in Oklahoma

20 records mapped · zoom and drag to explore

20 Oklahoma records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
CLO Lands 3
Packsaddle Wildlife Management Area 1
Great Plains State Park 1

Protected places with the most western deer mouse sightings, from the USGS Protected Areas Database plus named mountain ranges, good spots to look, not a full breakdown, so they don't sum to the total.

Where it's recorded in Oklahoma

CountyRecords
Washita County 3
Tulsa County 3
Comanche County 3
Woodward County 2
Washington County 2
Muskogee County 1
Ellis County 1
Osage County 1
Kiowa County 1
Rogers County 1
Oklahoma County 1
Cleveland County 1

The complete county distribution, spread across 12 Oklahoma counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Western deer mice carry no NatureServe state rank on file in Oklahoma, and all 15 of the state’s records come from iNaturalist with no GBIF specimen data logged, meaning what’s documented here traces entirely to casual sightings of a small, nocturnal rodent that’s usually caught rather than photographed elsewhere.

March alone accounts for 4 of the year’s 13 monthly-tallied sightings, the largest single-month share, with August and September showing zero records, too thin a pattern in a dataset this small to draw a confident seasonal conclusion beyond confirming the mouse turns up sporadically across Salt Plains, Red Slough, and Lake Thunderbird.

Occurrence data from iNaturalist.

More mammals in Oklahoma 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
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"