As far as the bantams, I do have one polish hen. Is that considered crested? There were four in the flock and I know the other chickens pecked their top knot...where they are now, they don't peck on each other at all. Except the polish does seem dominate. That's what worries me, I know the other polish were pecked to death. But there was the nutritional aspect, and I do have 18 other big chickens along with the 4 I kept makes 22 big chickens and 5 bantams.