My red orpington was going along just fine giving me approx one egg every day. Now she has started eating her egg every day before I can get to it. (I think it is her but I do have one red orpington rooster and three crested polish (two hens and a rooster) who live with her.) I have tried supplementing the feed with oyster shells and meal worms for added calcium and protein but stil she continues. I also tried blowing out an egg, filling it with mustard and putting it in the coop. I read that that will discourage this behavior because chickens don't like the taste. She cracked that one open too, but still continues to eat her own. Any ideas how to cure her of this habit?