Piles of droppings in one corner of the attic or near the entry point droppings on attic insulation stains on the attic walls from urine.
How to tell if you have bats in your attic.
Stains on entry points at the house of corners below the roof might be another sign.
You see a bat in your house.
Any scratch marks in the attic or on the exterior walls of the house may be a sign of bats moving around.
The top signs that bats are in your house are.
Bats are nocturnal animals which mean that they sleep during the day and will only come out at night.
Bat skin secretes an oil that rubs off on the walls of your attic leaving a tell tale sign that you have unwanted guests.
This is one of the most obvious signs bats are living in your attic.
If you hear chirping bat sounds from the attic or very close to the home at night or before dawn you may very well be hearing bats.
Bats usually leave their droppings in apparently designated areas so it s almost impossible not to see it.
Check for dark brown stains around your roofline dormers vents and roof trim.