I had one female quail who is around 2 years old, I recently bought two more female quails that were around a few months old. During the first few weeks my old quail ( Quail 1) was pecking and bullying both of them if they were in her space that she wanted to be in. She sometimes chased them around the cage and pecked them but never drew blood or attacked them too aggressively. They seemed to be getting along after that but just recently one of my new ones ( New Quail 1) has started chasing the others around including the other one I recently bought ( New Quail 2) who New Quail 1 got along with. New Quail 1 has started to crow and has frothy droppings I think New Quail 1 is a boy. Today I saw New Quail 1 continuously following New Quail 2 and they started to fight each other not one of them running away. New Quail 1 was even scaring Quail 1. I separated New Quail 1 from the others worried that it would lead to worse things. What should I do? Please give some advice.