Hi guys, When I first set my 2 new chicks into the chicken pen, they went into the coop to sleep. That was about 3 weeks ago. Last week I noticed that they are now sleeping up on top of the door of the coop. (Door is just 2ft by 2 ft)They are together. There are 3 grown hens inside the coop and they each sleep on their own bars. Each bar has enough length for about 3 chickens. Twice I have picked them up and put them inside the coop. They slept on the floor. I can't help but wonder if "Big Birtha" is not letting them in the coop. She is sort of stationed by the door and can easily peck anything that comes in. What can I do? Should I just let it be?