I brought home two Orcheln's chicks 2 1/2 weeks ago(BO and RIR).The little Bo has been the more dominant from the start. Admittedly, I did a rescue thing and chose the RIR that was smaller than the others and had two peck marks on her head. I thought a sweet BO sister might make them about equal. The RIR is also more fully feathered. I don't know if this is age or breed related. Anyway, now the BO is seriously guarding the food. She doesn't just want to eat first, she sits on the feeder and chases her sister away. I tried adding a lid on the foor but she is guarding the bird, not the dish. I can't separate them. Zinnia (RIR) goes isane without the other chick. If Orcheln's has leftovers about the same age, might it help to add a third? Would it have to be quarantined first?