It favors its left leg more than the right and likes to lay a lot more than when I got her a week ago. They get the DuMOR chick starter/grower 20% feed.
Could you post a video of the duckling walking? Upload your video to Youtube/Vimeo and then copy/paste the link here. Most likely its either a B3 deficiency which is common with ducklings since they require higher niacin intake then chickens, but people still feed them a feed designed for chickens, it could also be an injury. We should be able to tell by the video.
