I have 4 Brown Leghorns that are about 10 months old. We have been getting 3 or 4 eggs everyday until about a month ago we started getting 1 egg a day. I thought that we had a snake or something else stealing the eggs so we marked the egg and replaced it back in the nest and the egg was still there the next day along with one more egg. We are feeding Dumor laying pellets 16% and a little scratch (scratch fed on ground) Help me please before they become dinner.