I moved my flock from an area of mild weather (nothing under 50) to an area that snows 1-2 weeks during the winter. I have one pen of 7 ducks and a pen of 30+ hens with my duck that was being beat up on. Should I make dietary changes for the seasons? It is also 10-20 degrees hotter in the summer. Is there anything I should feed/avoid? I plan on having lights on during winter. Also I know you can feed some cat food sparingly to chickens, is it the same for ducks?