I have a pullet that is 6 months old and lays everyday. She is the soul survivor of a little flock I bought in April that we ended up having coon or coyote problems with. I have since bought a batch of 25 Easter Eggers that I stuck in with her when they were about 1 month or 2 old. She has never really liked them, and she is the obvious leader of the group. At first, she would peck at whoever got in her way or general area, and they pretty much stayed clear of her. They all get along pretty well now, and have been together for a few months, however, she (the older pullet) is the only one that sleeps in the chicken house. The Easter Eggers sleep outside in the corner of the pen, huddled up. They get in the chicken house through the day and eat just fine. They sit in the nesting boxes - during the day some times, but never sleep in there. It's starting to get cold, and I'm wondering if they are not smart enough to come in, or if she will not let them. What should I do? I leave the door of the chicken house open so they can all come and go as they please. They really don't seem to antagonize each other any more, but I can't figure out why they would rather sleep out in the cold than the nice nesting boxes with wood chips or even the chicken house floor with straw.