I have a question about my chicken yard. It's 40'x50' and I have a 6'x7' house. I was going to add a run on the side of the house for a secure place to be at night, they could go in the house or have outside area with roosts as well. Does this sound safe? I have opossums out here the size of small dogs!!! I hear they can break through chicken wire so I'm thinking maybe I should save my money, not build the run and just lock the chickens in the house at night. What do y'all think? Here's a picture of my chicken yard and coop: Thanks in advance for y'alls input!!!