Perhaps it's normal behavior for chickens and I just don't know about it. My chickens are just about 8 weeks old and look for all the world like adults however, it's their sleeping habits that concern me. In the chicken house is a ton of room for roosting, which I've seen them doing during the day. At night, however, all 17 get atop the nesting boxes, which isn't that big at all. They literally stack themselves on top of one another and of course, when one on the bottom wants to move, it awakens them all and they have to get back into position, some barely balanced on the edge with their heads hanging off. This is probably a sad bit of information but, I have sat up with them in the henhouse to watch them sleep. They surely can't be rested in the morning 'cause every couple of minutes, someone isn't happy with their position and it all starts again. I live in SW Missouri so, it's quite hot and humid here. I can't believe they are doing this for warmth. During the day they are free range. Aside from their feed and treats, they eat whatever treasures they can find. They seem completely happy and healthy other than the sleeping thing. Is there something to be worried about here? Any wisdom is greatly appreciated!