I have had my first 6 ducklings for two weeks now (Welsh Harlequins). They are getting HUGE so fast and are eating me out of house and home. They are fed an organic duck starter feed. With occasional bits lettuce or apple in some water for some dunking fun. I noticed that one of them has legs that are angled in. When she walks her right foot lands on the ground under the left side of her body an vice versa for the other leg. I do not believe she arrived this way. She gets around just fine and keeps up with her sisters without any trouble. Since I noticed her legs I have paid really close attention to the others. A couple of them have one leg that does this and the other is fine. I bought some niacin today and am hoping that this is the correct route to go. Any other suggestions?