We designed our coop/run for four chickens. They have a 4'x4' coop with one nesting box and two and a covered run that is 7'x7' they have two roosts and only use one roost. One of our chickens died and so we have three living in this setup. We would like four chickens. We don't feel it is easy to add just ONE chicken because that little one would have to live alone for a long time. I can double the size of the run to be a 14x7 and make it so we can shut off the other half of the run while the chicks grow. With this much outdoor space, do you think five chickens could share that coop (I'd add a nesting box and an alternate small shelter elsewhere for the also)?