So, I have now gotten my deer blind chicken coop mostly painted, and need to begin working on turning it into a chicken coop....I have a 4x4 by 6ft tall space to work with. There are three pre-cut windows, 8 x 36 I believe, that I will be augmenting. I will also be adding ventilation at the top edge of the structure on three sides. I would like to encorporate a shelf for the girls to sleep on, and maybe roost bars so they can choose either or. Because of the small size I am working with, I am going to retain my free-standing nest box for now. I need ideas on kinds of roosts and placement to optimize space, and something that works efficiently and well within the parameters that I have. One of my concerns is the placement of the pre-cut windows. I was contemplating puting a shelf up using a couple of corner braces as supports, but they are directly below one fo the windows. Would this be bad for my girls to roost directly infront of a window? I don't know how to make it all work. Ideas please?