Hello, I have a male Khaki Campbell and two females. They have been coming to the barn at night and I close them up so predetors wont get them. They have been doing this since March 2015. For the last 2 nights they have been staying in the pond and wont come back to the barn. Now I can't find their eggs in the morning and I'm worried about predators. Any suggestions on how to get them to start coming to the barn at night again?