We have two mother turkeys sitting on eggs and are finding two broken eggs each morning. They are in a fenced enclosure. Any suggestions? I am in Queensland Australia. The enclosure is fully fenced (tennis wire) with no signs of damage. During the day the two mothers stay sitting on the nest, together, on 10 eggs. The Tom and two other hen turkeys go outside during the day but all spend the night inside. In the morning I have been finding two broken eggs in a different corner of the enclosure. One still had a fulled formed dead chick inside it.