I did a search and nothing came up so I figured I would ask, can the two species mate and produce eggs. My reason for asking is because I have a flock of wild ducks that contain both mandarins and woodies. I am concerned that the woodies may pair up with the mandarins or vice versa, instead of with their own species and not give me species specific eggs. I do believe that they will not however since I have seen them in mixed collections before and have not heard of any problems. Thanks in advance.