Birds or Bats?

I hate birds! I just had a little run-in with one in my house and that thought ran over and over through my head as I frantically tried to open the windows in our second floor so the bird could find his way out. I much prefer bats to birds and living in this house has given me the opportunity to interact with both of them on ocassion. The house is three-stories, one hundred year old and seems to invite all sorts of species to find their way inside. The second floor is completely gutted and the sofets (part of the overhang of the roof) have holes in them so animals periodically end up inside. It is not an odd thing to hear something hitting the window and then the floor. First it's a resounding "boom" and then a more muffled one. After a few of these it's easy to know it's a bird trying to get out by flying into the window and being knocked onto the floor. When you see a bird to this repeatedly you begin to realized that the thing is probably not smart enough to avoid flying into you as you try to direct it out the window. That's why I don't like them; the thought of a bird in my face is just about as much as I can take. Bats, on the other hand, you never hear hitting anything. They just chirp or squeal and get quiet as you get close to them. As soon as you open a window they know it and fly right by you and out to freedom.