I just found out about grower mash. I always brought home each of my new pullets and put her in with my backyard hens to share their laying mash in the coop when they were locked up and forage together when they were out. I've just raised my first chick (in a separate little cage with starter crumbles). She'll soon be 6 weeks and need to go in the big coop, but now I guess she's supposed to eat a different food until begins laying (as should the other pullets over the years, but didn't). How do people feed different birds different foods? Unfortunately my new pullet will soon be bigger than my layers because she's a Fayumi standard and they are various Banties.