I just put up a 7x7 shed for a coop and want to know how large of a run I need for 16 chickens. The run with primarily be where the chickens spend the day outside of supervised free ranged time which will depend on who is home and when for the chickens to go out in the yard. We have a heavy eagle population around our farm so full time free ranging won't be possible unless we are prepared to quickly lose every chicken before we get a single egg. Most of the chickens are your average mid sized hens though we have 4 bantams and one large chicken as well. How much space total is needed for them to avoid conflicts and have plenty of room to explore and move around?