You’ve just discovered bats in your attic — and it’s July. You call a bat removal company and they tell you they can’t legally perform exclusion right now. What? Why not?
This is one of the most common and frustrating situations Utah homeowners face. Understanding Utah’s bat maternity season laws is essential before you make any moves. Here’s everything you need to know.
What Is the Bat Maternity Season?
From approximately May 1 through August 15 each year, most of Utah’s bat species give birth to and raise their pups (baby bats). During this period:
- Female bats form “maternity colonies” — groups of females that roost together to raise their young in warm, protected locations like your attic
- Each female gives birth to typically one pup per year
- Pups are born completely helpless and cannot fly for their first 3–6 weeks of life
- Juveniles gradually learn to fly and become fully independent by mid-August
Why Is Bat Exclusion Illegal During Maternity Season?
Performing bat exclusion during the maternity season is illegal under Utah and federal law for one critical reason: if you seal bats out of their roost while flightless pups are inside, the pups die.
This creates two serious problems:
- A public health hazard: Dozens or hundreds of dead bats decomposing inside your walls and attic create horrific odors and attract secondary pests (flies, beetles, dermestid bugs). The smell can last months and permeate your living space.
- A legal violation: Bats are protected under the Utah Wildlife Code and potentially the federal Endangered Species Act (some Utah species are federally listed or candidates for listing). Knowingly causing bat mortality through improper exclusion can result in significant fines.
Any bat removal company that offers to perform full exclusion sealing in June or July — without confirming there are no flightless pups present — is either inexperienced or unethical. Don’t hire them.
Utah’s Bat Maternity Season Calendar
| Month | Status | What Can Be Done |
|---|---|---|
| January – March | ✅ Safe window | Full exclusion permitted (bats often hibernating or using torpor — works well for winter exclusion) |
| April | ✅ Best exclusion window | Females returning but pups not yet born — ideal time for exclusion |
| May 1 – August 15 | 🚫 Restricted | NO full exclusion. Inspection, quoting, emergency single-bat removal inside living spaces only. |
| August 15 – October | ✅ Excellent window | Pups fully mobile — full exclusion permitted. Colony begins dispersing for hibernation. |
| November – December | ✅ Safe window | Full exclusion permitted. Most bats in torpor or hibernation. |
Note: Exact maternity season dates vary slightly by bat species and elevation. In higher elevation Utah communities (Park City, alpine areas), the maternity season may run slightly later. Contact us for guidance specific to your location.
What You CAN Do During Utah’s Bat Maternity Season
Even if we can’t perform exclusion sealing during the summer months, there is still plenty we can do:
1. Schedule a Free Inspection
We can fully inspect your property during the maternity season — documenting all entry points, assessing colony size, and evaluating guano contamination. This puts you first in line for exclusion the moment the season ends.
2. Get a Written Estimate
Having a complete written exclusion plan ready means no delays come August 15. We can begin work the week the restriction lifts.
3. Emergency Single-Bat Removal
If a bat gets inside your living space during maternity season, we respond immediately. Emergency single-bat removal from inside the home is always available — the restriction only applies to full exclusion that would trap pups inside.
4. Plan Your Guano Cleanup
If significant guano accumulation is present, we can plan and quote the cleanup process so it can begin in conjunction with or just after exclusion.
The Summer Waiting Period Is Actually an Opportunity
Many Utah homeowners discover their bat problem in June or July and assume they’re stuck until fall. But this waiting period is your chance to:
- Get a thorough inspection with no pressure to act immediately
- Compare estimates (though we’re confident you’ll choose us)
- Plan your budget for both exclusion and any needed cleanup
- Document entry points with photos for potential insurance claims
- Get on a fall schedule early — fall is our busiest season and slots fill quickly
What Happens If I Wait Until Next Spring?
If you discover bats in July and decide to wait until next spring rather than doing fall exclusion, here’s what happens in the meantime:
- The colony overwinters (some bats stay in your structure, others migrate and return in spring)
- Guano accumulation continues through spring and summer of next year
- The colony can grow another 20–25% over the next season
- Additional structural damage (urine saturation, wood rot) progresses
Fall exclusion is always better than spring for getting ahead of the problem before another maternity cycle begins.
Don’t Wait — Book Your Inspection Now
Whether it’s maternity season or not, contact Utah Wildlife Specialists today. We’ll inspect your property, answer every question, give you a written estimate, and get you scheduled for the earliest available exclusion window.
📞 Call or Text: (801) 675-8829
📧 Email: texasrangerwildlife@gmail.com
🚨 Emergency bat-in-house response available year-round
Utah Wildlife Specialists — Licensed by the Utah Division of Wildlife Resources | 15+ Years Experience | Serving the entire state of Utah
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