If you do take her to the vet, or learn something significant another way, could you let me know? My duck has been struggling with feather quality issues for years. We also have great avian vets, but they aren't very worried about it.Thanks! We have an awesome avian vet, and to be fair to her, she's never seen the duck in question. We've only mentioned it to her while she's been treating other animals of ours. The issue has persisted for so long with no other noticeable ill effects that we kind of just assumed it was her "normal." We're not convinced it's wetfeather, but we are going to go down that path of research now. So thanks!
...and yes, @Isaac 0 rocks! ;-)