I am designing our 8x8 coop, how many windows do I need? On the front, I hope to have a door with partial glass, a window next to it as well as the chicken door below it, and am thinking a window on the right wall and the left wall. All three of these windows will be the kind that you can open/have ventilation and not just look through. Do I need one on the back wall as well? I want to put my next boxes on either the right or left wall so I can collect the eggs from the outside, and read where they like to be in a darker area...I do not know about this yet. Thank you again!