I've read the posts on this topic which were helpful but I have a twist on my situation. My hens are Golden Laced Wyandottes and they are 6 months old. They are my "girls" come to me everytime I go out, sit on my legs when I sit down with them and are easy to catch. I just bought a chicken coop and put it at the end of the 10x20 foot chicken tractor I built for them this summer. I put their food and water in the coop and they go in and out all day just fine. At night they want to stay outside. I put them in and lock the door but if I leave the light on they fight like crazy. I'm afraid they end up hurt, but as soon as I turn the light off they go to sleep on the floor in the shavings, not on the roost. I have to get up early and let them out because I am afraid they will start fighting as soon as they can see. The coop is 6-feet long, five feet wide and 6-feet tall with a roost and six nesting boxes. I only have six hens so it should be plenty big enough. I wanted to leave the light on so as to extend their laying. Any suggestions would be so much appreciated.