"BATS IN THE BELFRY"
We had a real problem with a horrendous smell in the garage,turned out to be bats in the overhead. They released them unharmed and sealed garage up, we should have taken Shane's recommendation to seal house also but we wanted to wait, well the bats then took up residence in our attic to the porch and house, we called Top Notch and they came out promptly and they sealed house up leaving escape valves for bats to escape and after a sufficient amount of time (several weeks) came back & took those off and sealed up completely.
No bats were harmed!!!