Hello all, I live her in southern pa and have never seen a weasel in my life, although weasel-like creatures have been spotted around. I have had chickens for over three years here now and have never had one predator loss. They are all in bottomless pens with coops in which they are shut in at night, and nothing has ever gotten in. My question is, assuming weasels are around, what size holes can they fit through? can they squeeze through 1 inch hex wire? How about one or two inch ventilation gaps, etc.. I am wondering this now being in the process of finishing a new coop. Just thought it would be good to know. Thanks, MW.