So one of my ducklings is walking kind of funny. I don't know exactly how to describe it, but it's like it can't get it's legs up under it. I haven't been able to get it out on a non slippery surface yet to really test this though. But when I had them both out at the same time the other duckling had no problem getting it's feet up under it. I will be testing them both on the carpet later. I just wanted ideas now incase there is a problem. I have added niacin to their water. They are only a few days old.