I know chickens have a pecking order and I have discovered my top hen. Out of all the big girls, standard cochins,the one that pushes everyone around is my little tiny bantam cochin hen. She is a third of the size of the other hens. When she wants something she comes up behind them and bites them on the butt. When they whirl around shes standing there with this you want some of this look on her face. They back down. It's something to see being the big girls could stomp her.