I went in to my feed store and they were having a chick and duck sale to get rid of all of them for the rest of the year. They had this little guy left all alone in a tub and he seemed pretty stressed out, so I felt bad for him.....bad enough to take him home with me. He fits right in with my other 3 duckies and he is really friendly now that he is with some buddies. He is noticeably smaller than the rest of mine, although he is the same age from the same shipment, and he is already starting to grow tiny tail feathers. My first 3 are not. He also stands up pretty straight sometimes, but I have no idea if Runners come in this color pattern. I'm going to do some research online, but I'm not familiar with his color/pattern, so ANY suggestions you can give me will be wonderful!