I have 4 Runner Ducks and a great Duck house, at least I think it's great. They are 6 months old and for 4 months they have gone in this house so I can lock them up to protect them from predators. In the past month they quit going in their duck house. They go to a corner of the pen and stay there. I have gone out 2 or 3 in the morning and they are still huddled out in the open in the same corner of the pen with no protection from the elements. This duck house is a huge one and I don't understand what they want. Does anyone have any suggestions. They are going to start laying any time now and I would rather them lay in the duck house.