Nebraska mammals

North American Deermouse in Nebraska

Peromyscus maniculatus

Native to Nebraska S5 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.

Deer Mouse (Peromyscus maniculatus) (9310532204)DiGangi-DeermousePeromyscus maniculatusDeer mouse peering out from a lichen-covered tree crook beside a green leafDeer mouse braced on a bark-stripped log, ears forward and alert
Photo: Seney Natural History Association · CC BY-SA 2.0Deer Mouse (Peromyscus maniculatus) (9310532204)Photo: 6th Happiness · CC BY-SA 3.0DiGangi-DeermousePhoto: (Picture courtesy of the CDC and the Partnership, Inc.) · CC BY 2.5Peromyscus maniculatusPhoto: USFWS Mountain-Prairie · CC BY-SA 4.0Deer mouse peering out from a lichen-covered tree crook beside a green leafPhoto: Gregory "Slobirdr" Smith · CC BY-SA 2.0Deer mouse braced on a bark-stripped log, ears forward and alert

North American Deermouse in Nebraska, by the numbers

Common in Nebraska 1st most recorded of 95 mammals logged in Nebraska

2,583 occurrence records

Records from 2000–2026.

2,583 total records count every Nebraska occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 2,572 records with a full observation date.

When to look for the North American Deermouse in Nebraska

Most sightings fall in June.

2,572 Nebraska occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly Nebraska records (table)
MonthRecords
January29
February8
March41
April308
May203
June563
July290
August373
September338
October52
November200
December167

Monthly north american deermouse occurrence records (iNaturalist and GBIF) in Nebraska, 2000–2026.

Seasonality

Year-round in Nebraska, with recorded sightings peaking in June, with a smaller rise in August–September.

Occurrence map

Where North American Deermouse has been recorded in Nebraska

300 records mapped · zoom and drag to explore

300 Nebraska records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Borman Bridge Wildlife Management Area 206
Scotts Bluff National Monument 73
Fort Niobrara National Wildlife Refuge_Wilderness Area 64
Schlagel Creek Wildlife Management Area 62
Fort Robinson State Park 11
Nebraska National Forest 8
Agate Fossil Beds National Monument 5
Niobrara National Scenic River 3

Protected places with the most north american deermouse 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 Nebraska

CountyRecords
Cherry County 949
Dundy County 152
Cass County 151
Scotts Bluff County 138
Keith County 133
Sioux County 79
Dawes County 54
Antelope County 53
Logan County 47
Kimball County 44
Richardson County 41
Nemaha County 36
61 other counties 706

The complete county distribution, spread across 73 Nebraska counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

All 2,583 mapped Nebraska records in this overlay come from GBIF. Reports span every month, with the largest totals in June at 563, August at 373, September at 338, and April at 308; Valentine and Crescent Lake national wildlife refuges and the Platte River are the highlighted search areas. This is a record footprint rather than an abundance survey, so differences among months and locations may reflect collection and reporting effort.

Deer Mouse (Peromyscus maniculatus) (9310532204)
Full species profile North American Deermouse Peromyscus maniculatus Size 8–10 cm3.1–3.9 in Weight 21 g0.7 oz Lifespan Up to 8.3 yr 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
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"