Hello, all, I'm going to integrate my flock in the next couple of days, and I have a question about the logistics of feeding. I have girls that are almost 12 weeks old, and I'm going to put them in the coop with my two layers. I plan to put out the pellets I've been feeding my young girls, so they don't eat the laying feed. However, I'm not sure how to feed my layers oyster shell/egg shells. How do I provide that for them while ensuring the young girls don't eat the shells? I'm assuming the shells are hazardous for them since that's source of calcium. I've lost three hens in three weeks to predators, so I'm trying everything in my power to keep the rest of my flock healthy and alive! Thanks for any assistance!