Any scratch marks in the attic or on the exterior walls of the house may be a sign of bats moving around.
How to tell if you have bats in your attic.
Therefore if you happen to see a bat flying around your very early in the morning or during the night this is a major indication that there are some bats living in your attic.
Check for dark brown stains around your roofline dormers vents and roof trim.
You see piles of black droppings on your attic insulation.
This is one of the most obvious signs bats are living in your attic.
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.
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.
If you have bats in your attic you re definitely going to find piles of bat dropping scattered across your attic insulation.
Stains on entry points at the house of corners below the roof might be another sign.
Bat skin secretes an oil that rubs off on the walls of your attic leaving a tell tale sign that you have unwanted guests.
The top signs that bats are in your house are.