Scott, I was going to start a new thread but replying to this one is good enough.
I just was out side(9:00P.M.) and just saw two bats in my yard.
I was so exited, chills were in my body
Now, not saying I have them in my houses, just saw them flying gracefully around my yard for about 4 minutes, then they were gone.

I have lived at this house for 23 years, can't remember ever seeing bats flying around.
Any poop under the house?