I have a 5 week old white crested who is not walking. Yesterday I noticed she seemed pretty tired while out in the pool. I just posted a few days ago about our black swedish who seemed to be acting a bit off but now is acting totally normal. I thought maybe they could be going through the same type of thing but last evening I realized she wasn't supporting herself on her feet at all. If I stand her up she will hold herself for a few seconds then lays down. I have her in a wire crate in the same pen as the others so she can still talk back and forth or else she gets upset. She is eating and drinking. Seems more tired than usual but her eyes are clear and alert. I put her in a warm Epsom bath this morning and she went for a supervised swim with the others this evening. She swims good but her legs look wide apart to me when she paddles. My guess is that maybe she was stepped on? She's in with 5 others, all different breeds but same age. One of which is a pekin, so she is quite big. I don't see any swelling and I'm fairly certain nothing is broken. Could it be a sprain? Or could this be a crested problem? She is from Metzer farms. They eat Purina flock raiser and brewers yeast, as well as greens and healthy treats.
You can "edit" and fix it if you wish. I'm sorry but know nothing about ducks. Good luck with it regardless!
