You can also purchase wire exclusion doors.
Bat trap door.
You tape the netting along the top and sides but leave the bottom free.
5 pack bat escape exclusion door eviction valve pest control one way bat door.
I used it in a horizontal position in a window opening tipped slightly down towards the outside gravity is your friend when getting the bats out.
Watch out for his wing man attack mid way.
One type of exclusion door is a piece of netting that hangs a foot below the bats exit point.
It does not state it is a trap it states it is an escape door or exclusion device.
You ll then want to use exclusion doors and traps to allow the bats to get out.
It must be set correctly though to allow the bats to fly out but not fly back in.
1 4 inch poly netting a good all purpose bat net with a small enough grade to prevent the bats from getting stuck in the mesh or strangled.
Other bat trapping methods include homemade and commercial traps where the bat enters the trap and the door closes on it.
Since there is a minimum of 40 bats in a colony you will need a lot of traps or you will need to reuse the few you may have many many times before trapping all of the bats.
Occasionally bats roost where they are not wanted such as in attics.
The bat valve is a one way door device designed to aid in the removal of bats from buildings.
This bat eviction tool has three options to fit over a common bat entry point such as gable vents soffit returns ridge vents brick openings frieze boards and other construction gaps.
Applewood outdoor made in usa new 2020 version.
Removing the bats requires a special trap to allow the bats to leave at night but prevent them from returning safely forcing.
Making this shape right is an art like sculpture.
Trapping them is illegal and it s a lot more work than simply doing a live exclusion of letting them naturally fly out on their own through one way doors that you set.