I really haven't seen any. I noticed some droppings last week in the bathroom cabinet. It didn't really bother me since this time of year mice are very very common in my area, but typically not in numbers. One here and there. But anyhow, I also live pretty close to a cow field and there's a few stray cats that live in the farm. I've seen one in particular with 4 mice and 4 different times in the last few days. I'm a dog lover but I'm pulling like hell for that big ass white cat!! The mouse I caught last night was pretty good size, maybe about 4" long not including the tail. It would be awesome if I got up in the morning and that bucket was full!!!