HI all! I am a new mother hen this year with 5 pullets. We'll be building the coop next week and plan to move them out shortly after. My question is this: we have a very large fenced yard and we plan to let them free range for the most part. We will be building the actual coop to be predator-proof, but we will also have a small run attached to it to keep the chickens enclosed when they aren't roaming around the yard. Do we need to make the run predator proof also, or can we keep it simple with a basic frame and chicken wire? The entrance from the coop to the run will be closed and locked each night, so no predators will be able to get into the run and then into the coop.