We're working on our coop now (have another 4-6 weeks, thank goodness), and are debating how much ventilation/natural light is necessary. Due to the constraints of our backyard, the coop is backed up against two walls, leaving only two sides free. One side will of course have the door, and another side will have a bump-out for the nesting boxes. We are planning on an overhanging roof, and some windows covered with hardware cloth (and shutters for bad weather). The coop will likely be 3x5 and maybe 4-5 ft tall. So, are two 1x1 windows enough for ventilation and light? Do we need to drill holes in for additional ventilation? Wire for light? Thanks for any advice/thoughts!