We live in NWI and this will be our first Winter with Call Ducks. I'm looking for any advice as to what to feed them besides Layer Pellets. I've been reading about Wheat, so anything would be helpful. What type of Wheat do I get and where would I get it? We have our "Duck House" inside our Chicken run and wondering if we need to move the Ducks into the barn for the winter? I feel like they would be happier, left where they are, but afraid that they'll be too cold. Am I worrying for nothing?