Weird story....so I go to the chicken coop this morning to let my chickens out for the day and my 2 Pekin ducks are waiting for me as usual. But there is an extra duck with them that's not mine. I'm guessing someone dropped it off. Does anyone know what breed of duck this is and how do u tell male from female? I only know that the 2 I have are female because they lay eggs. the rooster came with the duck looks like a mixed breed of some sort.