Official PayPal Seal
online donation options

Fly By Night, Inc. is recognized by the IRS as a Section 501(c)(3) non-profit / tax-exempt organization.

Donations are tax-deductible and all donated funds directly support our bat conservation efforts.  CH12360


All content on this site is property of Fly By Night, Inc, and not to be duplicated for use without written permission

Fly By Night, Inc

Promote Your Page Too

Eastern Pipistrelle, Perimyotis subflavus floridanus & P.s.subflavus

PISU in SC box culvert 2004


Echolocation: : ~ 40K, short regular scoop.  Most calls are distinct & easily recognized.

Florida Distribution:  Statewide except keys

Roosting Behavior: Colonial.  Males sometimes solitary, Vegetation, Spanish moss, cavity trees,, caves, abandoned or seldom used structures, culverts & bridges.   Summer day roosts are little known.  Sometimes found roosting in open rooms of abandoned buildings, where they hang pendant from the ceiling.  Hibernate in warm caves:  58 - 64 F.  Documented roosting in culverts and structures during FBN  surveys in FL, GA and SC.

                          Uses bat houses? Yes, but only of special design                Nuisance colonies? Rarely


Foraging Behavior: emerges early in evening.  Forages along waterways and forest edges.  Small insects, leaf & plant hoppers, beetles, flies and small moths.

Reproduction: Mate late fall, twins born May-June

Management and Conservation Recommendations:  Education programs aimed at the public, land conservation, preservation of mature forested areas (particularly oak hammocks and forested wetlands),  snag trees and protection of culverts that are occupied by roosting bats will contribute to the conservation of this and other bat species.

Free Info

Text Box: Facts &Trivia

Text Box: Books, Etc.

Text Box: Species Info

What We Do

Text Box: Research

Text Box: Management

Text Box: Rescue

Text Box: Education

Text Box: Bat Houses

Who We Are

Text Box: Firm

Text Box: Experts

Text Box: Publications

Text Box: Clients

Text Box: Spot-Light

How To Help

Text Box: Wish List

Text Box: FBN Friends

Text Box: Guest Book

Take A Peek

Text Box: Live BatCam

Text Box: PhotoGallery

Text Box: Contact Us

Live Bats

View Our Live BatHouse Cam

Live streaming courtesy of

Text Box: Home

Urban Bat Status







Common, SNR




Mass g

FA mm


Total length



4.7 - 6.3

31 - 36

208 - 258

71 - 95


not keeled

Tricolored hairs, gray to yellowish color, anterior 1/3 of inter femoral membrane  furred Wing bones noticeably darker than membrane. Smallest bat east of Mississippi River