We live on the Missouri River with hawks, eagles, and coyotes and racoons galor! We were noticing that the hawks were getting more aggressive toward our hens so we decided ....along with that, and the winter, and extreme cold, that we would just keep the ladies in the coop. They have a 12 x 16 insulated shed.... as in a utility shed.... with built in nesting boxes and roosting bars...hanging feeders and heated waterer. They have a nice window for natural light and a clear heat lamp and one red heat lamp all on timers, so that they get plenty of light for laying. They have been giving me 13 eggs one day and 9 or 10 the next day. For awhile I was getting 17 eggs one day and 13 the next. They seem very happy! I clean it out every other day. They don't even want to go outside the shed. I've left the door open and they don't like the snow and cold. They run right back inside. I guess they must be happy, as I'm getting consistent eggs. I am just making sure I'm okay with keeping them inside for the winter??