My house does not have a belfry, but it is a big old house, and it does have bats, apparently.
Let me first say that I am a squeamish person, I don't like being around wildlife, and the bats make me panic quite enough as it is. When we first encountered bats in the house, I posted about it on facebook, at which point a good half dozen of my friends started posting panicky comments about rabies! and omg what if they bit you! So if you are squeamish and panicky about bats yourself, please do not read any further; I really don't need my own paranoia fed by yours. I am posting here because I need to vent a little, and my real-life friends mostly don't read here and so won't hassle me about the bats later. OK?
We found two bats in the house back in May. One was dead when we first saw it. The other I found alive, when I was at home alone; I wigged out, shut up the room it was in, and by the time my partner (henceforth, Batcatcher) came home (24 hours later) it was dead. Then we didn't see any for several weeks. In late July we found a couple more dead ones, all intact, lying on the floor. Our best guess is that one of our cats nabbed them (probably during the day, when they were sleepy and slow-moving) and abandoned them when they were no longer moving.
The exciting new wrinkle of the last few days is that we started finding them live. We went up to our TV room, which is in our finished attic, and as soon as we turned the lights on a bat started flying around. We have rigged a catching device out of a pillowcase and a wire coat hanger. Batcatcher nabs them in this improvised net, holds the pillowcase closed, takes them outside, and releases them. Three live bats in the last three nights. (we hope it isn't the same bat over and over again, sigh) It seems like time to call in professionals to see if they can figure out where the bats are getting in and stop them...