It has been cold here, recently going into the teens and even the single digits one night. I have 5 ducks (3 Cayugas and 2 Runners). They have a 3x5 insulated house, it has a small door out to an enclosed run, about a foot of shavings in the house, about 3 inches on the run, which is a Trex base. The entire thing is elevated off the ground. The door from the house to the run is open at night, though I have it propped open just enough for them to get in and out but closed enough to block some of the wind. No eggs for about a week and now I notice feathers in the house at night I can't locate my Storey's Guide at the moment but this doesn't seem like the time for a molt???? They are getting flock raiser, I give 3/4 cup of feed with a 1/4 cup of a combo of crimped oats and corn. I have been doing that all summer since the flocker raiser is rather high in protein. Did I do something to cause this molt?? Will the molt hurt the ducks??? .