Our coop is mostly finished, but I still have a few questions about basic things. Thanks in advance for your expertise and answers! 1. How far from the floor of the coop should we put roosts for standard breeds? The coop is only about 4 feet tall. 2. Do I need a metal feeder and waterer inside the coop as well as a set outside? Our local chicken supply place told me water and feed outside only, but it seems like I'm hearing the opposite here. 3. Does a coop need windows? We have three inch ventilation channels on all sides of the coop where the roof meets the walls that let in a fair amount of light. But should we also need a few small windows? Thanks!