I have 3 americaunas that free range. The 4th disappeared (probably a predator) around mothers day. Up until the 4th disappeared I was getting 3 eggs a day. Now I am lucky to get 1. They are about 2 years old. Can I keep them in the coop for a few days to see if they are laying elsewhere? They roam about 7 acres and I can't find a nest. They have food, water and Oyster shells on demand inside the coop. The ato door is open 7-7.