Hello, I wonder if you can help us? We have four hens, barnyard mix. One is a very large black hen that lays very big eggs. Every so often we find evidence of an egg being eaten. We did the mustard egg thing a few times. Can't say that it helped. The mustard egg would disappear or possibly get eaten. We continued to see evidence of an egg being eaten. The chickens are fed layer crumbles, with added oyster grit, meal worms, and a few kitchen scraps. Today, we think we solved the mystery. My daughter saw the large black hen lay an egg that appeared to be already broken in half before it was laid. Immediately the other hens ran to eat the egg. What could be the cause of her laying a broken egg? Is it because her eggs are so huge? Is there anything that we can do about it?