Nevada mammals

Brush Mouse in Nevada

Peromyscus boylii

Native to Nevada S3 Vulnerable in Nevada

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

Brush Mouse in Nevada, by the numbers

Occasional in Nevada 61st most recorded of 142 mammals logged in Nevada

80 occurrence records
2 with iNaturalist photos
Apr 22, 2024 Last seen in Nevada

Records from 2000–2026.

80 total records count every Nevada occurrence from GBIF and iNaturalist; the monthly chart covers the 69 records with a full observation date.

When to look for the Brush Mouse in Nevada

Most sightings fall in June to July.

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

Monthly Nevada records (table)
MonthRecords
January4
February1
March6
April3
May9
June22
July17
August2
September1
October4
November0
December0

Monthly brush mouse occurrence records (iNaturalist and GBIF) in Nevada, 2000–2026.

Seasonality

Year-round in Nevada, with recorded sightings peaking in June–July.

Occurrence map

Where Brush Mouse has been recorded in Nevada

80 records mapped · zoom and drag to explore

80 Nevada records mapped

Where it's recorded in Nevada

CountyRecords
Clark County 51
Lincoln County 9
Nye County 9
Washoe County 5
Lander County 3
Elko County 2
Douglas County 1

The complete county distribution, spread across 7 Nevada counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Nevada records for the brush mouse are anchored by Carson Valley and Humboldt-Toiyabe National Forest. They show where people have reported it, not how many animals live there.

These sites tie the Nevada record pattern to the state’s long mountain spine. Records from separate ranges matter because Nevada’s high country is broken into isolated peaks. The strongest reporting falls in summer, when Nevada’s high country is easiest to reach but low deserts are hottest. That may shape where observers submit records.

The file combines 2 research-grade iNaturalist records and 80 GBIF records. Those 82 records measure documented encounters, not Nevada’s population size. It’s native to Nevada. Nevada doesn’t specifically list it under the state’s conservation framework, and the IUCN lists it as Least Concern.

Occurrence data from iNaturalist and GBIF.

More mammals in Nevada 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