It's possible that he's a mix? Maybe a Mallard drake got in with someone's Appleyard hen and bam, little Mallard/Appleyard babies without anyone knowing? OR, he could just be a very off Appleyard? I don't know much about duck breeding, but I know with dogs, sometimes they have "throw backs" where one pup will come out looking like the breed did MANYYYYYYYYYYYY generations ago(I'm talking, like, hundreds, though; I don't know how old Appleyards are). With dogs, the throw backs are more built for what the breed was originally bred for(I hate most breeds today because they couldn't do what their breed was *meant* to do). A lot of working-bred dogs tend to stay true to form, whereas more show-bred dogs stray from that and look... "pretty" for the shows. Anyway, sorry for going a little off topic there. I know ducks work a lot differently in that sense, but still. There are a lot of possibilities.
It's my understanding that if they know where the food is, and they know there's a warm place, they won't migrate. Pyrrhos can very easily fly, but she chooses to stay in the pen. The Welshies are her flock, and I think she does really like them. I hope she really likes us, haha.
Learningstill, that's good! That she already knows, I mean. And yeah, I don't know if I would ever really be able to do that, which is why I plan on selling them as day-olds or week-olds. I wouldn't want to keep them around for several weeks and get attached to them. I couldn't do something like that, lol.