Mine get a mix of grower & layer with the oyster shell on the side, when I have only adult birds, so that they get a better balance of protein. When we have broody hens and chicks, everyone gets the 22% chick crumbles and they all prefer it.
The only downside to a higher protein feed I think is...
I agree with this. Sometimes birds eat feathers and show other cannibalistic behaviours because they aren’t getting enough of what they need. The pecking behaviour can become a habit and other birds can pick up on it too so best to address ASAP. In the mean time you could try feeding them some...