See below for more bat guano pictures

What does Bat Guano, or Bat Poop, Look Like?

Bat droppings, known as guano, are small and dark in coloration. The elongated pellets are crumbly and turn to dust when touched. Often used as fertilizer because of its high nitrogen and phosphorus content, guano can be dangerous when allowed to accumulate in the home. The nutrient-rich droppings cultivate the growth of histoplasmosis fungus, which causes severe respiratory problems in humans.

Are there piles of guano in the attic?

Call for immediate help

Bat Poop – Signs of Bat Problems

Deposits of guano accumulate within walls and attics as well as on the ground and roof tiles. The musty, acrid smell of bat droppings, along with the stains they leave on walls or ceilings, is a sure sign of bat infestations. Because the droppings are hazardous and bats are common carriers of the rabies virus, property owners should never attempt to remove bat infestations or clean guano deposits on their own. Contact the wildlife control professionals at Critter Control who expertly remove bats and sanitize affected areas.

Removing bat guano addresses the contaminated material, but it does not prevent bats from getting back inside. An inspection can identify the openings bats are using and determine whether one-way devices, entry-point sealing, cleanup, or restoration are needed.

If you are concerned about a bat problem in your home, have bats in your attic, or would like assistance with sealing bat entry points to your basement or attic, call the experts at Critter Control today at 1-(800) 274-8837

Bat Guano Pictures for Identification


bat droppings in insulation


bat guano in attic in Miami.

Learn more about bat removal.

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Carol
25 September 2026
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A possum was able to gain entry into my basement through the dryer vent. I called Critter Control and they responded a few hours later. John came to my residence and quickly found the unwanted critter and removed her. I am extremely happy with the service I received. Critter Control will be installing a dryer vent to prevent future critters from entering my home.
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Cody and his team gave us great customer service.
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Dale Lipa
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Nate took care of our repairs. He was prompt, professional and courteous. Highly recommended.
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Lucinda Krumkop
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Top notch communication, respectful treatment of the property, top tier professional process. Nice guys. Give Sam and Asher a fat bonus! :)
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Pablo Arias
24 September 2026
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Raccoon in attic, unconfirmed, but Critter Control Austin did a good job sealing, spraying and making sure if was not inside before sealing everything.
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Alyssa Pattin
24 September 2026
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HAD ALEX OVER TODAY FINISHING UP A JOB! GREAT GUY, DOES CLEAN WORK AND QUICK! APPRECIATE THE SERVICE!
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Gary Laughman
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Nate and Sean were here for bee had to come back second time and we're very professional would recommend them to anyone that has issues
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Randi B
24 September 2026
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This company demonstrates a professional customer service dynamic and quality workmanship. They performed exclusion reinforcement as young raccoons had recently found their way into the attic crawl space area.
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Samantha Verhulst
24 September 2026
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Hudson at Critter Control was absolutely fantastic! He came out to remove some critters in our attic for myself and my wife. From start to finish, the experience was professional, friendly, and incredibly easy. Hudson showed up on time, clearly knew what he was doing, and took the time to explain everything instead of just rushing through the job. What really stood out was the attention to detail and the genuine care for getting the problem taken care of the right way. I was very very nervous about the animals in my ceiling and the possibility of bats. He did everything possible to ease my concerns. It’s rare to come across someone who combines great communication, professionalism, and excellent service like Hudson does. If you need pest or wildlife removed or taken care of, I wouldn’t hesitate to recommend Hudson and Critter Control!
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