I have a silkie who has decided to sit on 3 eggs, no problem but I have the rest of the chickens out in the run to give her some space during the day time. Well my barred rock is going nuts to get to my mama hen even fighting with the other hens she has lived with, with out any problems. She is also being very vocal about it. So I let her in with the mama hen she quiets down but digs her head under like shes trying to take the eggs??? What is happening here I have never hatched eggs before this is my first broody hen?