My husband is building a new coop, and we're having some difference of opinion on whether to add a window to the East side of the coop. He wants to add it, so in winter there will be east light coming in early in the morning, helping to warm the coop. otherwise, he worries the birds will be freezing all winter long. I don't want to add it, because the coop already has 3 windows and a glass door, and one more will mean one more dirty window to clean - plus, I prefer to have wall space. Also, I prefer if there is no East light coming in, hoping the rooster will sleep in late (yeah right - good luck with that...) The three existing windows are on the North and West sides - no windows on the South or East sides - see picture below. I need BYC to help solve our dilemma!