So we got 16 ducks 2 years ago then inherited 3 more bringing our total to 19. Everything went great until they started laying and a snake broke into the pen. Then it was a ripple effect snake, fox, then my mallards flew away not to return. Fast forward 2 years we are trying again. This time 3 Pekin, 3 Rouen, and 3 khaki Campbell. But I'm not so sure about one of our Rouens I think it may be a mallard, it is smaller than the rest and I'm not sure if the stripes. Can you help me...