It's winter time in NH. My house is 3 levels and the attic is finished. There isn't a crawl space to check for pests. We have 2 dormers in the front of the home and it is believed the critters are entering there. Every night from 11-6am we here the scurrying critters above us in the ceiling, then they're going along the walls. They run about loudly for 5-10 minutes then it quiets down for 20 minutes or so. Then it starts up again. I was told that bats hibernate in the winterand wake up from time to time but don't go beserk. I had a pest control associate check the house and looked in the basement--he saw a small amount of droppings. He left 5 traps, I checked them daily--nothing. When he came back in 12 days and saw nothing he concluded I had bats. I think they're mice because of the constant scurrying about the walls and ceiling. Anyone with an experience similar to mine----your insight would be appreciated? Thanks!