Had anyone had ducks who are egg eaters? I've always thought it was a chicken problem, not a problem with ducks. I'm slightly alarmed this morning to find a frozen egg with the shell eaten off of it. I am assuming that the egg froze, expanded and broke the shell, and the ducks nibbled at the broken edge because it was sticking up. I'm really hoping that this won't teach the ducks to eat eggs. They didn't eat any of the interior of the egg, because it was frozen solid. They have free choice oyster shell and shells are normally quite hard.