I have four, seven-week old chicks that are free to run around the main coop any time they like. They love to eat the grown hen's food, although they still get their normal chick feed. I was wondering, though, even though they have handled the calcium in the layer feed, would they be able to handle oyster shell if I gave it to the older hens? I have at least one hen that needs calcium, not urgent but she should get it. Will it hurt the chicks if they get some of it too? Thanks!
