My chickens are- 4 months old. Everyone is roosting except 5 of them. I have a "runt" who is half of everyone else's size. I think all 5 are at the bottom of the "pecking order" but I have 3 different heights of roosts. (2 roosts for each height) Tonight I put all 5 on the bottom roost and closed the coop and watched through the window. 4 of them got comfy but when the runt tries to get comfy-one of the other chickens knocked her off the roost. So I put her back up with the next smallest chicken, she decided on her own she wouldn't stay on the roost. So she's essentially sleeping alone on the floor tonight. Anyway, my question is-did I mess up?