My older hen is eating her own eggs. Now I don't want her going into the stew pot, nor do I want her teaching the others to start eating their eggs.
I noticed that her eggs (well the shell that's left) are very thin. We're thinking she is about 5 or 6 years old, we've only had her about 2 years.
My flock free ranges, and we feed them the regular laying pellets/corn scratch. They also have oyster shells available. I haven't put egg shells out for them because, one I use them in the compost pile, and two I don't want to encourage the egg eating.