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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 prior written permission

Bat Houses

FBN Large Bat House

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FBN Small Bat house

Roost Mitigation

Want to purchase one of our quality bat homes???

Bat House Prices

**Discounts are available for multiple bat houses and for BCI members.

If you want to see our bat houses in action check out our Live BatHouse Cam or visit one of the bat house sites listed on our Client page --

Fly By Night Bat Houses Features 

·     certified 'Bat Approved' by Bat Conservation International  (BCI)


·          constructed of pine exterior and plywood interior      

                                    Aromatic or red cedar is avoided  as the odor may deter bats until the wood has aged       


·          held together with treated screws for added strength


·          all joints and seams are sealed with high quality caulking to exclude moisture and light


·          all exterior and interior surfaces are painted, and / or stained and varnished (3 or more coats)  to seal and protect the wood from                moisture, bats and weather; to protect bats from any chemical timber treatment and to enhance solar warming

                       *** BCI research shows that caulked and painted bat houses are more likely to be occupied than bare wood bat houses


·        Interior roosting substrate is created rather than added— interior pine surfaces are manually grooved and plywood partitions are   roughened with a wire wheel

                       **Screen is NOT used — our research revealed significant problems caused by screen failure. We caution against attaching any materials. 


·     equipped with an attic to provide horizontal roosting surfaces preferred by some species (i.e. evening bats)


· equipped with front and rear ventilation slots to prevent over heating and interior slots that allow easy access between chambers and into the attic


·          larger than most ‘garden center’ bat houses commonly available, research shows bats prefer larger bat houses


·          composed of three or more interior chambers and a 6 inch landing pad

                       **Additional chambers provide bats the needed variety of thermal conditions  and landing pads make it easy for bats to enter

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Fly By Night Bat Houses Are:   

Designed to provide optimal roost sites and maximize the potential for long-term occupancy —


Our basic design consists of three interior chambers, an attic, ventilation and access slots and a 6 inch landing pad.  Additional chambers & ventilation slots provide bats the needed variety of thermal conditions and landing pads make it easy for bats to enter, the attic provides additional horizontal roosting surfaces preferred by some species (i.e. evening bats).  Modifications to the basic design are limited to increasing the number of roosting crevices for our pole mounted houses and increasing the horizontal length in our custom structure mounted house. 


Fly By Night, Inc

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Visit Design Guidelines for more info

Laura Finn, the founder of Fly By Night, Inc., conducted extensive research on the roosting preferences of bats and their use of bat houses for her Masters Thesis at the University of Central Florida (1993-1997).  The project was supported by Bat Conservation International and involved the comparison of temperatures in a variety of bat house designs and occupied building roosts. These studies were necessary because safe alternate roost sites are vital to mitigate for the decline of natural habitat and the increasing loss of roost sites.   The information on this site is based on twenty years of experience, long term research and direct observation that continues to highlight that bats NEED bat houses and the importance of our continued bat house research .

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