Well, maybe they aren't. Being that I am new to the chicken thing I am not sure if the behaviours that they are exhibiting is normal or abnormal for hens. The the largest of my 8-10 week old pullets (give or take a week, lol ) are having staring contests and butting chest together often, thought they do sleep and eat together. Perhaps they are establishing pecking order? The lady we bought them from was not 100% sure about their sex and is willing to by back any rooster we might have back (wheew). The birds in question are one Ameraucana, a Barred Rock, and a Black Star.