Hi I am new to owning ducks got my first muscovies in August. My drake has had foamy eye on and off all winter. But today when I went to feed it was worse then its ever been covered 70percent of his eye. My ducks are free range on 160 acres with a very large pond. Should I be concerned or just watch and see if it goes away like it has in the past. He doesn't seem to have any of the respiratory issues that could be associated with foamy eye. I know he has been breeding so possibly just an injury. I've just never seen his eye that foaming so it caught me off guard. Any suggestions would be great.