I placed my breeder boxes in with my wood ducks about the middle of Feb. I had one girl lay 5 eggs about a month ago. (She didn't even lay in the boxes, she laid in the dog house.) And they were infertile. Anyway, they hang out on top of their boxes and I haven't seen one inside and the shavings haven't been messed with either.. What gives? We have had a bit of wierd weather, kinda cold. It has been freezing at night a little. Could this have something to do with it? Or am I just not meant to have little ducks this year???