Coop size-floor is 4X4 and height is The back is not done but will have 3 nesting boxes. How many hens can I have? I was hoping to have 6 hens and it’s in a back yard so space for run is not a problem. After reading it looks like I may have to make the vents bigger which are on the side. The big square picture will be a door that opens for to clean out the coop. Any advice would be great. I’m new and this is my first coop/chickens fo raise.