I have been hatching my runner duck eggs, all have been purebred Fawn and White to Fawn and White until I found a Cayuga drake. I was not sure that he had mated with my runner until I hatched a dark colored duckling with black feet. I am now aware that he is mature and now I don’t know what to do with any additional eggs that are incubating already if they are mixed. Do people still want mixed ducks?