Killing them is both inhumane and will create an unlivable environment due to the smell of a colony of decaying bats.
Catching bats in attic.
The bats can be expected to depart in a couple of days.
Often times you have to use multiple methods to effectively get rid of the entire bat colony safely.
Sometimes people will take glue boards and place them in the attic where the bats are roosting.
If you locate guano on a window sill or the ground look up.
The bat s entry point is likely right above the pile of droppings.
If on an eave gap a funnel is correct.
The solution for the unwelcome bats in your attic when trying to get rid of bats there is no one way to do it.
Run a fan or two with or without the lights as they cannot tolerate fast moving air.
Bats have to have a dark space and lights drive them off.
Glue board bat trapping methods people who have bats in their homes and don t know the proper way to remove them try many methods for trapping them.
Using the ultrasonic bat repelleralong with other methods of bat removal will ensure the end of your bat problem for good.
Guano piles are usually near the attic s point of entry in clumps down the attic walls near the entry and exit points and on the attic floor.
To get them out identify their entry and exit points making sure not to seal them while the bats are inside.
If across a large fascia board polynet is correct.
You must do a 100 effective sealup job with no mess ups and the exclusion devices must be the correct kind.