Hello- 5 Hens (2 BOs and 3 EEs) and one Rooster (Cochin/Araucana mix) are sharing a coop with a daytime run. The rooster has always been nice to us and the ladies, but recently has started picking on one of the BOs. She now has a bare spot on the back of her head from this treatment. Are there any interventions? Anything to do before we have to consider giving him up? thanks!