As I prepare my run and "duck hut" in preparation for Spring (and getting some Khaki's and/or Runners), I am trying to learn as much as possible about the care and feeding of ducks. What should I NOT feed them (aside from seeds and chocolate...already read those are bad)? Also, while I find plenty of info on protein percentage, what about the other macro-nutrients fat and carbs? Do ducks HAVE to have grains? I would rather not feed them if ducks do not require them since I will be eating the eggs and have wheat intolerance and generally have a thing against soy and other carbs (Of course if they NEED them that is something different) Thanks in advance for any help.