I have a flock of turkeys and chickens. I was feeding Nutrena All Flock layer pellets until our recent hatch. I got some starter feed for the chicks but now the older birds are refusing to eat the pellets. I've been mixing it half and half but they pick around the pellets. They free range and I see them eating a ton of crickets. I also give them any leftover fruit or veggies that we have. Should I lock up the chicks with the starter feed and only let the older birds have layer pellets? I feel bad doing that because they love being free to roam around with the big girls. But I also feel like the older girls need more than just starter feed. Thoughts?