Louisiana mammals

Evening Bat in Louisiana

Nycticeius humeralis

Native to Louisiana S5 Secure in Louisiana

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

Evening Bat in Louisiana, by the numbers

Common in Louisiana 23rd most recorded of 72 mammals logged in Louisiana

130 occurrence records
41 with iNaturalist photos
Jun 12, 2025 Last seen in Louisiana

Records from 2000–2026.

130 total records count every Louisiana occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 128; the monthly chart covers the 128 records with a full observation date.

When to look for the Evening Bat in Louisiana

Most sightings fall in February to March.

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

Monthly Louisiana records (table)
MonthRecords
January5
February26
March19
April6
May6
June16
July19
August11
September2
October15
November3
December0

Monthly evening bat occurrence records (iNaturalist and GBIF) in Louisiana, 2000–2026.

Seasonality

Year-round in Louisiana, with recorded sightings peaking in February–March, with a smaller rise in June–July.

Occurrence map

Where Evening Bat has been recorded in Louisiana

128 records mapped · zoom and drag to explore

128 Louisiana records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
State Capitol Park 2
Kisatchie National Forest 1

Protected places with the most evening 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 Louisiana

CountyRecords
Grant County 59
East Baton Rouge County 23
Vernon County 13
Winn County 12
St. Tammany County 6
West Feliciana County 5
Webster County 2
Lafayette County 1
Rapides County 1
Jefferson County 1
Calcasieu County 1
Tangipahoa County 1
3 other counties 5

The complete county distribution, spread across 15 Louisiana counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Evening bats carry a NatureServe S5 secure rank in Louisiana, and the record leans overwhelmingly on GBIF specimen data, 113 of the state’s 130 records, since colonial bat surveys, not casual photographs, document most of what’s known about this species here.

February is the busiest month, with 26 records, followed by 19 in March, and the count rises again to 16 in June and 19 in July, the maternity-colony season when females roost together in large numbers and survey teams count pups and adults at known roost sites; a smaller October bump of 15 may mark fall dispersal, and December has none. With Grant Parish alone holding 59 records, a handful of surveys likely shape that calendar.

Occurrence data from iNaturalist and GBIF.

More mammals in Louisiana 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"