I think I've read enough here about predator prevention, but until I just bumped into the thread "Snake!!!" it hadn't even occurred to me the coop would also bring mice and rats and fleas. FLEAS??? I've had enough of fleas. Brought some in from the garden a few years ago and they're not completely gone YET! So if anyone knows a proven preventative measure for any pest smaller than a chicken, please post it here. I can't be the only person who needs to know! Organic solutions preferred but "any port in a storm" applies!