I think I am going to end up free ranging my 12 ducks seeing that it will be too hard to maintain their run and it will be overall cleaner. The problem is that I have two different breeds. I really don't want them to cross breed, but with free ranging it is impossible. I dont want mutts because I dont think anyone will buy mutt eggs or ducklings since they are not a pure breed. Also, I'm worried if they are out all day and in during the night that if a mother goes broody and makes a nest outside the coop that something will get her if i let her remain on the nest throughout the night...what should I do?