Follow these steps to predator proof your chicken coop and run, and your birds will safely enjoy their space while you sleep easily. Elevate the coop, enclose runs with properly secured half inch hardware cloth, create a skirt or underground fence, padlock the doors, and surround with electric wire in bear country. These are some of the important measures - read the details and get more tips at the link.
Surviving Winter with Chicken: CREATE WIND-BREAKS: Covering run walls with construction grade plastic sheeting or tarps serves several purposes: it provides the flock with a warmer run by keeping rain, wind and snow out during the day, and it keeps the coop warmer and draft-free at night. Furring strips should be nailed or screwed to the structure to ensure that the plastic remains in place.