Evening Bat in Oklahoma

Nycticeius humeralis

Native to Oklahoma SNR Unranked in Oklahoma

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

IUCN Red List status

LC – Least Concern

Widespread and abundant; not at risk.

Photo: Lisa Winnett-Pequeno · CC BY 4.0Evening bat resting, brown fur and dark ears and wings visible, not restrainedPhoto: Enwebb · CC BY-SA 4.0Evening batPhoto: NPS Photo · Public domainEvening Bat

Evening Bat in Oklahoma, by the numbers

Occasional in Oklahoma 64th most recorded of 120 mammals logged in Oklahoma

35 occurrence records

17 with iNaturalist photos

Feb 1, 2026 Last seen in Oklahoma

Records from 2000–2026.

35 total records count every Oklahoma occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 34; the monthly chart covers the 34 records with a full observation date.

When to look for the Evening Bat in Oklahoma

Most sightings fall in July to August.

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

Monthly Oklahoma records (table)

Month	Records
January	0
February	1
March	0
April	2
May	1
June	1
July	10
August	6
September	0
October	7
November	6
December	0

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

Seasonality

Year-round in Oklahoma, with recorded sightings peaking in July–August, with a smaller rise in October–November.

Occurrence map

Where Evening Bat has been recorded in Oklahoma

34 records mapped · zoom and drag to explore

34 Oklahoma records mapped

Notable places to look

Park, forest, or monument	iNaturalist records
CLO Lands	1
Wister Wildlife Management Area & Waterfowl Refuge	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 Oklahoma

County	Records
Cleveland County	8
Comanche County	4
Johnston County	4
Tulsa County	3
Le Flore County	3
Garvin County	3
Oklahoma County	3
Payne County	2
Kiowa County	2
Jackson County	1
Adair County	1
Other localities	1

The complete county distribution, spread across 11 Oklahoma counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Evening bats carry no formal NatureServe rank in Oklahoma, SNR unranked, and the record leans heavily toward GBIF (31 of the state’s records) over iNaturalist (17), meaning survey work, not casual sightings, documents most of what’s known about this colonial bat here.

July alone accounts for 10 of the year’s monthly-tallied sightings, close to a third of the total, with secondary bumps in August (6), October (7), and November (6), tracking the maternity-colony season and fall dispersal. The records spread thinly across 11 counties, led by Cleveland County with 8.

Occurrence data from iNaturalist and GBIF.

Full species profile Evening Bat Nycticeius humeralis Size 5 cm2 in Weight 7–15 g0.2–0.5 oz Lifespan Up to 6 yr View the full profile

More mammals in Oklahoma 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"