Then, I will stay with my earlier answer that you probably shouldn’t add anymore to the bigger one, and you can add 5 hens, eh maybe a 6th one if you turn it a certain way, to the smaller one.The big coop is 40 SQ ft, small coop (coop part), is about 32.5 SQ ft.![]()
All jokes aside. The 4 sq. ft. Per bird for coop and 10 sq.ft. per bird for run is not law. So, you won’t get arrested or anything, but a pretty good thing to not go too far under that space per bird. And, more space is always positive.
I have a fairly large walk in coop. One time I had enough in it that it worked out to about 3.4 sq.ft. Per bird and the world didn’t end and they chickens did fine. But, I could tell I probably didn’t want to add another bird and really didn’t want as many as I had in them.