I have a 7 month old hen. She started laying last month. Don't know much about her. Very sure she is a bantam; considering her size compared to the other chickens I have. These last 3 days; I think she is on a broody streak. But where I'm confused...she lays her egg in a box where the other 2 lay their eggs (not sure if she lays 1st; 2nd; or 3rd). After she lays her egg; she goes back to a different box and sits on a golf ball. I open the door and she puffs up; tail goes up; head feathers go up; and she growls. What should I do? I was keeping the golf balls there so the younger hens see where to lay and also so if they decide to peck its a golf ball and not an egg.