Missouri mammals

Eastern Red Bat in Missouri

Lasiurus borealis

Native to Missouri S4 Apparently Secure in Missouri

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

Eastern Red Bat in Missouri, by the numbers

Common in Missouri 21st most recorded of 82 mammals logged in Missouri

386 occurrence records
184 with iNaturalist photos

Records from 2000–2026.

386 total records count every Missouri occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 384 records with a full observation date.

When to look for the Eastern Red Bat in Missouri

Most sightings fall in August.

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

Monthly Missouri records (table)
MonthRecords
January2
February5
March19
April52
May30
June63
July34
August103
September36
October20
November18
December2

Monthly eastern red bat occurrence records (iNaturalist and GBIF) in Missouri, 2000–2026.

Seasonality

Year-round in Missouri, with recorded sightings peaking in August, with a smaller rise in June.

Occurrence map

Where Eastern Red Bat has been recorded in Missouri

300 records mapped · zoom and drag to explore

300 Missouri records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Mark Twain National Forest 11

Protected places with the most eastern red 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 Missouri

CountyRecords
Morgan County 72
St. Louis County 65
Cole County 64
Jackson County 35
Nodaway County 15
Franklin County 13
Boone County 10
Pulaski County 10
Grundy County 8
Taney County 6
Newton County 6
Scott County 6
37 other counties 76

The complete county distribution, spread across 49 Missouri counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Nearly every eastern red bat record in Missouri comes from GBIF rather than iNaturalist, a pattern that fits a bat most people hear rather than see: acoustic surveys and net captures document it far more often than a phone photo does. Forest Park in St. Louis and the wooded greenways along the Missouri River show up because they pair mature tree canopy, where red bats roost hanging among leaves, with open flight lanes for foraging at dusk.

Missouri’s record count peaks in April and May, matching the species’ spring return from wintering grounds farther south. NatureServe calls the state population S4, Apparently Secure, but the global G3 rank flags real range-wide concern, tied largely to population pressure documented elsewhere in the eastern bat range. None of the 334 GBIF records translate into a count of bats using Missouri’s forests; they mark where and when surveyors or observers found one.

Occurrence data from iNaturalist and GBIF.

More mammals in Missouri 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"