Ohio Bat Eviction Moratoriums: What Homeowners Need to Know
Finding bats in your attic, walls, soffits, or other areas of your home can be unsettling. Naturally, most homeowners want the problem corrected as quickly as possible.
However, bats are different from many of the nuisance wildlife species we encounter in Ohio. State regulations control when and how bats can be evicted from a structure, and there are certain times of year when additional restrictions apply.
These regulations don't mean you have to simply live with bats in your home. They mean the problem needs to be handled correctly, humanely, and in compliance with Ohio wildlife regulations.
At Huntsman Wildlife, we help Greater Cincinnati homeowners understand what can be done now, what may need to wait, and how to develop a plan to permanently keep bats out.
When Are Bat Evictions Restricted in Ohio?
Ohio has two important restricted periods for bat exclusion:
May 16 through July 31: Additional restrictions apply when five or more bats are present or observed during the required inspection and bat watches.
October 15 through March 31: Bat exclusion requires written permission from the Ohio Division of Wildlife when bats are present.
The preferred periods for routine bat exclusion are generally:
April 1 through May 15
and
August 1 through October 15
During these periods, conditions are generally better suited for allowing bats to leave a structure without creating unnecessary risks to the animals.
Why Does Ohio Restrict Bat Evictions?
These regulations aren't arbitrary. They are designed around the bat's biological cycle.
Protecting Bat Pups During the Summer
Late spring and summer are maternity season for Ohio bats.
Female bats may gather in maternity colonies inside attics, soffits, walls, and other protected areas to give birth and raise their pups.
Young bats initially cannot fly.
If adult bats are excluded from a house while flightless pups remain inside, the mothers may be unable to return to their young. This can result in young bats dying inside the structure.
It can also make the homeowner's problem worse. Adult females desperately attempting to reach their pups may search for alternate routes into the building—including routes that lead into the home's living space.
Ohio's summer restrictions are designed to reduce these situations while allowing young bats time to become capable of flight.
Why Are There Winter Restrictions?
The October 15 through March 31 restricted period addresses a different problem: hibernation and cold weather.
Bats dramatically reduce their activity as temperatures fall.
Evicting bats during cold weather can force them outside when insects and suitable shelter aren't available. A bat prevented from returning to its winter shelter may not survive.
For this reason, Ohio requires written authorization before bat exclusion is performed during this period.
Does This Mean Nothing Can Be Done Until the Moratorium Ends?
No—and this is one of the biggest misconceptions we hear from homeowners.
A restricted eviction period doesn't necessarily mean we have to walk away from your home for several months.
There is still valuable work that can be done.
A professional bat inspection can identify where bats are entering, where evidence of activity is present, and what conditions around the structure are allowing the problem to occur.
Ohio regulations also distinguish between actually evicting bats and closing secondary access points while leaving the primary bat entrance available.
That distinction can allow us to begin preparing the structure for a successful exclusion while still complying with Ohio regulations.
Interior pathways that allow bats to move from an attic or wall system into the occupied portion of a home may also be addressed to help protect the people living inside.
What Happens During the Summer Restricted Period?
Between May 16 and July 31, Ohio requires an inspection and two bat watches within a seven-day period before exclusion or eviction.
A bat watch involves observing the structure around sunrise or sunset to document bats entering or leaving the building.
If four or fewer bats are documented, exclusion may proceed without additional Division authorization.
If five or more bats are documented, exclusion during the restricted period requires written permission from the Ohio Division of Wildlife.
If five or more bats are observed during the inspection or first bat watch, additional watches are not required before seeking authorization.
This is one reason professional inspection and documentation are so important.
Can Bats Ever Be Evicted During a Restricted Period?
Yes.
Ohio provides a process for requesting written authorization from the Division of Wildlife when circumstances justify an exclusion during a restricted period.
Health and safety concerns may be considered when determining whether an exclusion can proceed.
During portions of the colder restricted period, weather conditions may also factor into the Division's decision. Ohio's published guidance indicates authorization may be considered when nighttime temperatures remain above 40°F throughout the 10-day forecast.
The important point is that homeowners shouldn't assume that either extreme is true:
“They can remove the bats whenever they want.”
or
“Nobody can do anything until the restriction ends.”
The answer depends on the time of year, number of bats, conditions at the structure, and circumstances surrounding the infestation.
How Huntsman Wildlife Handles a Bat Problem
Our goal isn't simply to get bats out of the attic.
Our goal is to determine how they're getting in and how we can prevent the problem from happening again.
A typical bat project may include:
1. A Detailed Exterior Inspection
We inspect the roofline, soffits, fascia, vents, siding transitions, flashing, chimneys, construction gaps, and other potential bat access points.
Bats can use surprisingly small openings, so finding the primary entrance is only part of the investigation.
2. Identifying Primary and Secondary Access Points
A structure may have one active entrance but numerous other openings bats could use once repairs begin.
We identify these potential secondary entrances so the building can be properly prepared for exclusion.
3. Bat Watches When Required
During the summer restricted period, we can perform the observations necessary to determine the approximate number of bats using the structure and document their activity.
This helps determine what options are legally available.
4. Pre-Exclusion Repairs
Where appropriate, secondary access points can be sealed while maintaining the bats' primary entrance and exit.
Think of this as reducing a house with dozens of possible doors down to one controlled exit.
5. One-Way Bat Exclusion
When exclusion is legally permitted, a properly installed exclusion device allows bats to leave the structure but prevents them from getting back inside.
Ohio recommends leaving exclusion devices in place for at least one week.
After we're confident the bats have exited, the exclusion device can be removed and the final opening permanently sealed.
Why We Don't Trap, Poison, or Simply Seal Bats Inside
Professional bat control is very different from conventional pest control.
Ohio prohibits killing or euthanizing bats except in situations involving a bite or potential rabies exposure.
Methods such as poisoning bats, using glue traps, fogging an attic to kill them, or simply sealing every opening while bats remain inside are not acceptable bat-control methods.
More importantly, they're unnecessary.
Proper exclusion solves the underlying problem without intentionally harming the bats.
What If a Bat Gets Inside My Living Space?
A bat flying through a bedroom, hallway, or living room is different from a colony occupying an attic.
If a bat has been inside a room with a sleeping person, unattended child, or someone who may not be able to reliably determine whether contact occurred, do not automatically release the bat.
Contact your local health department or medical provider for guidance regarding possible rabies exposure.
Ohio regulations allow a bat to be killed or euthanized when a bite or potential rabies exposure has occurred so appropriate testing can be performed.
Why Protect Bats in the First Place?
Bats are an important part of Ohio's ecosystem, but many populations have suffered significant declines.
According to the Ohio Division of Wildlife's bat exclusion guidance, some Ohio bat populations have declined by more than 90% following the arrival of white-nose syndrome.
Several bat species found in Ohio are also listed as endangered.
Protecting bats doesn't mean homeowners should be expected to share their attic with a colony.
It means solving the conflict in a way that protects the home while giving the bats an opportunity to leave safely.
That's exactly what professional bat exclusion is designed to accomplish.
Have Bats in Your Cincinnati-Area Home? Start With an Inspection.
If you're hearing scratching or chirping in your attic, finding bat droppings, seeing bats emerge from your roofline at dusk, or discovering bats inside your home, don't wait until the perfect exclusion window to have the problem evaluated.
Even during an Ohio restricted period, we may be able to:
Inspect and document the infestation
Identify primary and secondary entry points
Perform required bat watches
Determine whether exclusion can legally proceed
Address pathways leading toward living spaces
Complete allowable preliminary exclusion repairs
Help determine whether Division of Wildlife authorization is appropriate
Develop a plan for completing the final exclusion as soon as regulations and conditions allow
At Huntsman Wildlife, our job is to protect your home while following the regulations designed to protect Ohio's wildlife.
Have a bat problem? Contact Huntsman Wildlife to schedule a professional bat inspection and find out what options are available for your home.