Hi ThinkingChickens,
Yes, I also remove the food at night. Usually they have pretty much cleaned it up.
It is exactly because of mice and other night critters that I try to have nothing there overnight. -- My run is that "weldmesh".. It is about 1x3 vinyl coated welded wire, so I know mice could get in.
Way on the other side of the house yesterday morning I saw a big furry thing running by the fence. I think it was acatually a 'Pack Rat'. They kind of remind me of smaller muskrats, and actually build nest piles made of junk... So I know I have critters around here that neither the dogs nor the cat eliminate. I think it was too big to get into the run, but why tempt fate?
PS like your new Avitar. Is that Mabel?