Tennessee mammals

Tricolored Bat in Tennessee

Perimyotis subflavus

Native to Tennessee S2 Imperiled in Tennessee

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

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

VU – Vulnerable

High risk of extinction in the wild.

Tricolored Bat in Tennessee, by the numbers

Common in Tennessee 26th most recorded of 86 mammals logged in Tennessee

329 occurrence records

Records from 2000–2026.

329 total records count every Tennessee occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 316 records with a full observation date.

When to look for the Tricolored Bat in Tennessee

Most sightings fall in December.

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

Monthly Tennessee records (table)
MonthRecords
January6
February22
March39
April45
May20
June17
July19
August28
September29
October23
November17
December51

Monthly tricolored bat occurrence records (iNaturalist and GBIF) in Tennessee, 2000–2026.

Seasonality

Year-round in Tennessee, with recorded sightings peaking in December, with a smaller rise in March–April.

Occurrence map

Where Tricolored Bat has been recorded in Tennessee

300 records mapped · zoom and drag to explore

300 Tennessee records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Reelfoot Lake 6
Shiloh National Military Park 3
Natchez Trace State Forest 2
North Cherokee National Forest & Wildlife Management Area 2
Great Smoky Mountains National Park 2
Fort Donelson National Battlefield 1
Meeman-Shelby Forest Wildlife Management Area 1
Fall Creek Falls 1

Protected places with the most tricolored 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 Tennessee

CountyRecords
Monroe County 40
Perry County 37
Decatur County 17
Sullivan County 12
Gibson County 12
Montgomery County 11
White County 11
Franklin County 10
Marion County 9
Haywood County 9
Davidson County 8
Sevier County 8
50 other counties 145

The complete county distribution, spread across 62 Tennessee counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

All 329 of Tennessee’s tricolored bat records come through GBIF; there aren’t any iNaturalist entries in this dataset at all. That split points to formal hibernacula and mist-net surveys rather than casual public sightings, the kind of targeted monitoring biologists run because white-nose syndrome has hit this species hard in the state’s cave systems.

December alone accounts for the single highest monthly count, likely reflecting winter cave surveys when bats cluster in known roosts and are easiest to count. A second, broader rise builds through March and April as bats become active again before dispersing for summer. NatureServe ranks the species S2, imperiled, in Tennessee, so this record total shouldn’t be read as a secure population.

Occurrence data from iNaturalist and GBIF.

More mammals in Tennessee 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"