Female duck with male markings?

[TippyCheeseandJet]

Wondering if anyone else has experienced a female duck with male markings. We know for sure she is female- we have collected eggs from her, but she has a green tint to her head (not as strong as males but it’s definitely noticeable) and a partial white collar. We believe she is either Rouen or a Rouen-Mallard mix possibly (got the eggs a year ago from a farmer with a variety of free range ducks). She is just over 1 year old. When she was younger every duck person I knew told me she was a boy bc of the greenish head and white collar, but obviously she isn’t. Is this common? I cannot even find a picture online of a female Rouen with a collar.

 

[Isadora]

I wouldn't say it's common necessarily, but I have heard other members say their ducks had male coloring/feathers.
@KaleIAm had a female duck who grew a drake feather.

 

[picklestheduck]

You said the farmer you got with a variety of ducks. Maybe shes a cross of some kind?

 

[citymeetscountry]

Do you have a picture of her?

 

[duckydidi62]

I wouldn't say it's common necessarily, but I have heard other members say their ducks had male coloring/feathers.
@KaleIAm had a female duck who grew a drake feather.

I also have a female with curled tail but she quacks and has orange and black bill, and a little green on top too. But she has more brown feathering like female. No eggs yet, Too young