i have two ducklings a Cayuga and an Ancona. The Ancona is 7 weeks old. They had a bit of a niacin issue 3 weeks ago but with a change in food I haven’t noticed any shaking and walking has been fine. As the Ancona started to really feather on of her wings seemed to sit a bit higher. I thought one wing was just feathering faster and maybe I would have angel wing. Now I think this is something else. I checked her out a bit more and discovered close to her spine up above her hips seems to be a bit enlarged. Her hips and legs are working but after I felt her hips, very gently, she has a slight hip. I currently have her set up in my spare bath tub and I give her at least one but usually two swims a day. I feed plenty of greens and peas along with her starter crumbles mixed with rolled oats. Should I add more niacin? I stopped giving the niacin after I got the shaking handeled and switched to a starter crumble for ducks. Their enclosure is almost finished. They’ll have 20’x16’ to roam and 300 gallon stock tank pond to swim in. Things got delayed due to a redesign after I saw a mink hunting near by. Any advice would be greatly appreciated. I’m going to try to get a picture as soon as I finish posting this. Thanks in advance