I've got what I think is a broody hen, she is a year and a half old RIR that I got from a neighbor after she was kicked out of his flock by the other birds. She always seems to be in one of the nest boxes in the evenings when I go out to shut the doors. I read on here to put them in a wire bottomed cage to cool them off. How big a cage do I need to use and do I need to suspend it to get airflow underneath? Also should I take the golf balls out of the boxes since the other birds use the nesting boxes to lay already?