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Tri-coloured Bat

Perimyotis subflavus · Evening Bats

Tri-coloured Bat (Perimyotis subflavus)
(c) Zella W., some rights reserved (CC BY-NC), uploaded by Zella W. · CC BY-NC · via iNaturalist

Tri-coloured Bat (Perimyotis subflavus) is in the Evening Bats family (Vespertilionidae). Across the U.S., iNaturalist users have logged 2,818 research-grade observations of it in our sample, peaking in March.

Seasonal pattern in the national data: spring and fall migrant. Counts also reflect when people are out photographing, so compare months within a state rather than across states.

Conservation status (iNaturalist): VU.

When to photograph Tri-coloured Bat: observations by month (U.S.)

JanFebMarAprMayJunJulAugSepOctNovDec

About Tri-coloured Bat

Formerly known as the eastern pipistrelle, technically an inaccurate classification, the new more descriptive common name tricolored bat (Perimyotis subflavus) was chosen because of the distinct tricoloration of each hair, which is black at the base, yellow in the middle and brown at the tips. This species of bat is widely distributed throughout the eastern parts of America and Canada, ranging west until Kansas, Oklahoma, and Texas, from Honduras up north until southern Ontario. It is...From Wikipedia via iNaturalist — article, CC BY-SA.

Tri-coloured Bat by state

StateObservationsPeak monthMain season
Texas504MarchJul–May
Alabama349FebruaryJan–Apr
Tennessee218MarchFeb–Apr
Oklahoma203AprilFeb–Apr
Kentucky201MarchJan–May
Florida195MarchAug–Apr
Mississippi138JanuaryJan–Jan
Virginia132AprilFeb–May
Georgia129MarchFeb–Apr
Missouri120MarchMar–Apr
Arkansas118MarchMar–Apr
North Carolina106AprilMar–Apr
Ohio54AugustMar–Sep
South Carolina54MarchFeb–Apr
Illinois44FebruaryFeb–Apr
West Virginia42MarchFeb–May
Indiana37AprilFeb–May
Pennsylvania37FebruaryFeb–May
New York23MayApr–May
Louisiana18JanuaryNov–Jan
Maryland18AprilMar–May
Minnesota14JuneOct–Jul
Iowa10MarchMar–May
Wisconsin10OctoberOct–Oct
Kansas8MarchMar–Apr
Massachusetts8AprilApr–May
New Jersey8MayMar–Jun
Vermont8FebruaryFeb–Feb

Main season = months with at least 30% of the state's peak-month count.

Related mammals (Evening Bats)

Photography tips

  • Keep a legal and safe distance: 100 yards from bears and wolves and 25 yards from other large animals in national parks.
  • Dawn and dusk are peak activity times for most mammals.
  • Use your car as a blind on wildlife drives.

FAQ

When is the best time to photograph Tri-coloured Bat?
Nationally, March has the most observations, with the main season from September to May.
Where is Tri-coloured Bat most often seen?
The most observations come from Texas, Alabama, Tennessee.