I have some little chicks in the brooder, and wanted to get a few layers for eggs now. The little chicks are going to be decent size hens.. Amberlinks, EE, Leghorns, etc.. The layers I have picked up are VERY heavy, large white hens. Was told they are white rock, not sure really? Anyway, I also picked up a tiny Bantam roo, and am considering going back to buy a little hen for him Then, I have two little silkies. Could these breeds coexist ina coop & run without trouble usually, or will I need a separate area for the little banties?