So I am getting chickens in the spring and already have a coop that is approximately 15 square feet. The person I bought the coop from kept 4 full size chickens in there with no problem. My question is would it be okay to have 5 chickens in there? They will have full access to a 50 square foot run during the day and we live in an area where we get a few inches of snow maybe once a year. I also plan to let them free range in the backyard a couple hours a day when I am watching them. Thanks!