Serving the Denver Metro Area from Castle Rock to Boulder
Signs You Might Have Bats
Staining:
- Discoloration at entry points
- No visible tracks or claw marks climbing to the entry
Droppings:
- Around the entry
- Ammonia or musky smell
- Shiny black
- Contain insect parts
- Small 1/8-1/4 inch
Sounds:
- High-pitched squeaking
- Scratching
Doesn’t match the signs you see? Return to Pests Page.
If you think you have a bat problem, please call or contact Animal & Pest Control Specialist, Inc., serving homes across the Front Range, including Denver, Evergreen, and Castle Rock.
Bats Nuisance Concerns:
- Guano (bat droppings) is a fertile ground for fungal diseases called “Histoplasmosis” and can be transferred to humans who breathe in the fungal spores
- Histoplasmosis can be fatal
- Caused by the fungus Histoplasma capsulatum
- Symptoms include fever, anemia, and weight loss
- Bat bugs (commonly confused with—and related to–bed bugs) are usually found along with a colony.
- Known carriers of rabies and other diseases
- Most rabies deaths in the US are associated with bats
Bat Removal:
- Can only be killed if creating a nuisance in dwellings
- Best technique: APCS will install “ONE WAY” bat doors so that they can get out but not back in
- Within a week, APCS will pull traps and seal the entry
- For reliable removal, check for more entries and seal them all
- Guano clean up services are offered
General Information about Bats:
- Nocturnal
- A single bat can eat up to 1,200 insects in an hour
- Use “Echolocation,” similar to sonar, to navigate around objects in the dark
- Usually have one litter a year consisting of 1-2 babies, typically in the late spring
- Only need a half inch or less of space to enter a house or building
