To Just Hatched: I have never given my free range chickens any oyster shell or grit. They free range everyday at their leisure and we feed them scraps. They do tend to get in my compost bin as well. A friend of mine that also has free range chickens agrees. They pick & peck all day long so they will get enough grit on their own. Don't panic. I read a lot & asked a lot of questions. Trust your own instincts. It really isn't rocket science. People have been keeping chickens for many, many years & I'm sure not everyone had access to oyster shell!!