For Stanley, she may do better as a house duck over winter since she is struggling. I hope you can make her a wheelchair so she can get around.
Are you giving her Liquid B Complex? when one already has a problem we have seen the liquid b Complex help better than anything else. 1 ml daily over a...
Do you have an idea why your duck isn't walking?
Niacin deficiency or injury?
As for the winter months. I use heated buckets for winter so I don't have to carry water out many times a day since we get temps below freezing. In the coop I use deep litter so they can snuggle down into their...