My 17 year old son was really excited to build our coop with his friend... (needs prom money)! I showed him a lean to coop design and gave him some cash... (glad he didn't take the cash for prom!). They promptly started cutting and hammering and then I realized that they framed it out to be 4X3. They also framed out for 3 nest boxes so I guess you could say it's 4X4 but that extra foot is nests. I had hope it to be 4X4 with next boxes. So, I need to know if my chickens are doomed. I have 5 little babies and plan to have an attached, enclosed run that they will have full access to. I live in Northern CA so it's mild (no snow) during winter and its under an oak tree so won't get too hot... Are we doomed to start over or will my chicks be too cramped?