Yes duck for sure. someone she can relate too.It would be better to get her another duck than a chicken. I do not know if splayed leg hurts or not. If she grew up like that she is probably used to it - at least, that is what I would think, not sure.
Splayed legs might could set up hip problems eventually because of the way they walk. you may end up having to give her some kind of anti inflammatory as she gets older. There is also Metacam for pain and inflammation and Glucosamine for inflammation