I have been reading posts for a while, but this is my first post. We finished our coop and are starting on the run. I have read that you need to have 10 sq ft of run per chicken. My thought was we really don't need that much as our chickens will be free range, we have 3 acres for them to run around on. We will only use the run when we have to put them in early or when we are gone for a weekend. Just wondering if the run can be smaller if they aren't in it all day everyday. Any thoughts?