Florida is no stranger to bats, with 13 species present seasonally or year-round. All of the native Floridian bats are insectivores, but that doesn’t mean you want them taking up residence in your property. While the natural roosting sites for most of these bats tend to be caves or the hollows of trees, when it gets cold, bats often seek warmer shelter in manmade buildings during colder months.
If you’re wondering how to spot the signs of bats in your home or business, this page will guide you through the most common indicators of a bat infestation. From guano (droppings) and strong odors, to squeaking sounds, and visual sightings, we’ll help you recognize the key signs that bats may be nearby. Knowing what to look for is the first step toward protecting your property.Â
Bat Droppings (Guano)
This is by far the easiest and most unpleasant sign of bats in Florida. Bat droppings, or guano, build up quickly around the entry points where bats come and go. They are small, dark-colored, and pebble-like with a sharp odor. You may also find them inside, stuck to insulation or in attic corners, or outdoors on decks, porches, or windowsills. Unlike rodent droppings, bat droppings crumble into powder when touched and may contain insect parts. Seeing them in multiple areas can signal a growing infestation.
Grease and Stains Near Entry Points
A little-known fact about bats in Florida is that their skin excretes a dark, resin-like grease that contains pheromones involved in social and reproductive signaling. This leaves behind oily smears at entry points where they squeeze in and out. Look for these marks near the roofline, eaves, vents, or cracks in your siding. These stains are similar to the marks left by rodents for scent marking and communication, but noticing other signs of bats will help to confirm a bat infestation.
Strong Smells
A strong, lingering odor is one of the lesser-known but unmistakable signs of bats. Large groups of bats produce a distinct smell due to the buildup of guano and urine, especially in enclosed spaces like attics. The scent can resemble ammonia or a musty mix of mildew and waste. If you’ve noticed a sudden change in the air quality in your attic or upper floors, it could be a sign that bats have started to roost above, and it could be time to get the bat exterminators involved!
Unknown Noises
It’s common knowledge that bats use squeaking and chirping sounds (echolocation) to communicate and navigate at night. These noises become louder and more frequent when a colony is living inside your home.Â
While bats are silent flyers, you might hear fluttering, scratching, or thumping in the walls or ceiling, especially after sunset. Bats are nocturnal, so their activity picks up after dark. A bat infestation could be to blame if you hear regular nighttime noises that don’t sound like rodents.
Visual Sightings at Night
Since bats are nocturnal, it’s rare to see them in daylight. But if you see one flying around your home at dusk or just before dawn, it could mean more are hiding nearby. Watch the roofline or attic vents at sunset to see if bats exit or enter the building.
Finding a dead bat outside can also be a clue. If you notice multiple sightings or bats consistently flying around your property, there’s a strong chance they’ve chosen your attic or shed as a roost.
Need Help With a Bat Infestation?
Bats are protected animals, and trying to remove them yourself can be difficult and even illegal. Florida Pest Control offers humane removal services for both seasonal visitors and year-round bat residents.
Once we identify the infestation, we safely remove the bats and use proven exclusion methods to prevent them from returning. Bats carry bacteria and disease, so you must act quickly if you notice heightened activity or signs of roosting. If you suspect bats have moved into your home or business, trust Florida Pest Control for effective bat control and removal.
Frequently Asked Questions
What Are The Most Common Signs Of A Bat Infestation At Home?
Look for bat droppings, dark grease marks near entry points, and strong smells; nighttime squeaking or scratching, and visual sightings at dusk are all clear signs of bats.
How Can I Differentiate Bat Droppings From Those Of Other Pests?
Guano is small, black, and crumbly with a pungent smell. It often piles up beneath roosting spots or near entry points. Unlike rodent droppings, it breaks apart easily and may contain insect wings or fragments.
What Health Risks Are Associated With Bat Infestations?
Bats can carry rabies and other diseases. Guano can also develop a fungus called Histoplasma, which may cause lung infections if disturbed. If you suspect exposure, contact a healthcare professional.
Can I Remove Bats From My Home On My Own?
DIY removal is not recommended. Bats are protected in Florida; disturbing them can lead to legal issues or spread disease. It’s best to call a professional to handle the infestation and properly seal entry points.
How Can I Safely Clean Up Bat Droppings?
Always wear gloves and a mask. Dampen the area first to prevent spores from becoming airborne. Never sweep or vacuum guano dry. For large cleanups or if you’re unsure, we recommend hiring professionals who know how to handle it safely.