West Virginia mammals

Townsend's Big-eared Bat in West Virginia

Corynorhinus townsendii

Native to West Virginia S2 Imperiled in West Virginia

Not listed as nonindigenous in West Virginia by USGS NAS; native to its West Virginia 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 West Virginia, by the numbers

Occasional in West Virginia 40th most recorded of 77 mammals logged in West Virginia

47 occurrence records
14 with iNaturalist photos
Dec 15, 2025 Last seen in West Virginia

Records from 2000–2026.

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

Most sightings fall in June to July.

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

Monthly West Virginia records (table)
MonthRecords
January1
February5
March3
April6
May1
June11
July7
August0
September1
October6
November4
December2

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

Seasonality

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

Occurrence map

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

47 records mapped · zoom and drag to explore

47 West Virginia records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Monongahela National Forest 10
Potomac Wildlife Management Area 5
Otter Creek Wildlife Management Area 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 West Virginia

CountyRecords
Pendleton County 40
Tucker County 3
Raleigh County 1
Webster County 1
Pocahontas County 1
Fayette County 1

The complete county distribution, spread across 6 West Virginia counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Townsend’s big-eared bats are one of West Virginia’s most cave-dependent species, and NatureServe’s S2 imperiled rank reflects how vulnerable a colonial cave-roosting bat is to disturbance at even a single hibernaculum or maternity site. Most of the 47 records here, 43 of them, come from GBIF rather than casual photographs, meaning cave surveys, not people spotting bats in flight, account for nearly everything documented in the state.

Records peak sharply in June (11 sightings) and July (7), together more than a third of the year’s total, matching the maternity-colony season when survey teams count roosting females and pups at known cave sites, while the near-absence in August, zero records, likely reflects a gap in survey timing rather than a real pause in bat activity.

Occurrence data from iNaturalist and GBIF.

More mammals in West Virginia 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"