I found a small bat inside of a swarm trap once! The kind of swarm trap that they offer in the supply catalogs. I let him/her go and moved the trap....then someone stole the trap!
I now make my own swarm traps and have never had any bats enter into them.
I have quite a few bats flying aorund at night. A few of the smaller bats come out earlier than the larger bats and I have seen a few bees around while the bats were out. The bees are just the last forager bees coming in for the night and I never seen a bat bother them before.
There is my 2 cents worth.