The chickens would pick on the quail. The quail would suffer alot of injuires from flying up to also being picked on. They shouldn't be kept together at all. I have chickens and I have quail but they are housed differently. My chickens free range outside and sleep in their own coops. My quail are inside and have been since 2 weeks of age. I do not ever have them around each other and I wash my hands and remove my shoes when entering the area where my quail are. I have taken my quail outside but they were put in a small cage away from the chickens. Quail get spooked easily so they are easily injured from bumping their heads or flying into things. I don't have pictures of my quail next to a chicken because I don't put them near each other but I would say my quail are about the size of average 3-4 week old chicks and at hatch they are about the size of silkie chicks.