Hi there. I think I have two Khacki Cambells and a Pekin. They were sold to me as runners so I'm not entirely sure. I think the Pekin is lonely as the Khacki's seem to spend a lot of time together. I wonder if I should get another duck so there is a nice even number? Also wonder if I should get a new duck, should it be the same breed or if any additional duck will do. Thanks much.