She chose an eggs in the middle of the nest and pecked at it in its place. There was only a little shell left. She had shell and yolk on her face. There was yolk all over the other eggs. I am wondering if she crushed it by accident and then ate it. Today was the first day i kept her locked inside (she has plenty of room and all the food and water she needs). I wanted to keep the other hens out of her nest and to keep my broody out of the wrong nests. Hopefully this was a one and only embryo murder. I am going to give her extra treats tomorrow to make her happy to sit on the nest a little while longer.Well, there's one thing that can't happen in an incubator...sorry to hear that. But consider, she might have recognized something wrong with the egg and decided to get rid of it...did she peck it in place with all the other eggs, or did she move it at all away from the other eggs?