I have only had chickens for 3 1/2 months and duckling for about 1 month, so im not quite sure about how the winter will go, for my chickens I have a coop,i will put plexie? glass in front of the windows with small holes drilled to make sure they have some air, I will add a thicker layer of pine shavings, and i heard they will also need vaseline on combs and wattles, that is pretty much it. As for the ducks, i am still researching on how to winterize them.