We're seeming to be in the same battle. The mouse battle . At night is there play time. I thought when winter was over that they'd go outside and stay. Oh boy was I wrong. Looks like they just brought more of there family inside.
They seem to be smart. I set traps but they seem to stay set. Like they know to stay away from it. I found this big garbage can , it has rope tied to the top and it hangs down just enough for the rats to get hold of . They get to the top of the can and they fall in trying to get to the food at the bottom(treats ) looks like I got five of those small furry creatures in one night. So that is more humane way. Now I released them several miles away in the woods where they belong. Lol
Good luck with the battle.