Transgender duck??

[Chicken_tiger_catt]

I have a duck (Ainsley - a Welsh Harlequin) who was born a female, laying eggs and perfectly happy. She suddenly stopped laying eggs and went through a moult, where she developed drake colouring and a curly tail feather. She does not lay eggs anymore, but still has a loud quack. I was wondering if she could possibly be transitioning (if at all possible in ducks??). Any help or shared experiences would be much appreciated. Below are before and after photos.

Sounds like a hormone imbalance and/ or chimera duck. If chimera, it will likely act like a drake, but will be infertile on account of being part female.