The carton is an extra-jumbo sized carton (notice, only 10 spots) I use for eggs that are too large to fit in regular egg cartons. Some of our Golden Comet and Black Star hens, as well as a couple of the ducks, lay MASSIVE eggs that don't fit in regular egg cartons. So, I buy these extra-jumbo sized cartons for them. That's a duck egg in the back right corner.
Today there was a surprise in one of the nest boxes .... a GIANT goose egg! Thelma has been protecting that particular nest box for a few days, and now I know why! She wanted it to be ready when she was!