I have six Khaki Campbell ducks, four females, two males. Just recently the two drakes have been fighting, the more dominant one has been pulling feathers off of the other one. It's almost February and we're expecting a cold snap; I don't want the other drake to freeze to death. I've separated them, until we get more females. Is there anything else I can do? Anything I can feed the poor drake so that he gets stronger/etc? Should I put two females with each drake or just leave the less dominant one by himself? Thank you.