Nevada mammals

Townsend's Big-eared Bat in Nevada

Corynorhinus townsendii

Native to Nevada S2 Imperiled 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.

Townsend's Big-eared Bat in Nevada, by the numbers

Occasional in Nevada 65th most recorded of 142 mammals logged in Nevada

321 occurrence records
28 with iNaturalist photos
Apr 20, 2026 Last seen in Nevada

Records from 2000–2026.

321 total records count every Nevada occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 288; the monthly chart covers the 288 records with a full observation date.

When to look for the Townsend's Big-eared Bat in Nevada

Most sightings fall in July.

288 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
January7
February11
March14
April32
May46
June28
July78
August32
September6
October6
November5
December23

Monthly townsend's big-eared bat occurrence records (iNaturalist and GBIF) in Nevada, 2000–2026.

Seasonality

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

Occurrence map

Where Townsend's Big-eared Bat has been recorded in Nevada

288 records mapped · zoom and drag to explore

288 Nevada records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Great Basin National Park 5
Death Valley National Park 4
Gold Butte National Monument 3
Anaho Island National Wildlife Refuge 1

Protected places with the most townsend's big-eared bat 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 Nevada

CountyRecords
Esmeralda County 66
Nye County 50
Storey County 36
Churchill County 34
Washoe County 32
White Pine County 22
Clark County 20
Lyon County 9
Mineral County 7
Elko County 5
Lincoln County 3
Pershing County 3
Lander County 1
Other localities 33

The complete county distribution, spread across 13 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 townsends big eared bat are anchored by Ash Meadows National Wildlife Refuge and Great Basin National Park. They show where people have reported it, not how many animals live there.

The Nevada records bridge the state’s southern desert country and its higher central or northern ranges. That broad spread matters more than any single hotspot. 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 28 research-grade iNaturalist records and 312 GBIF records. Those 340 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
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"