Rouen duck male?

[WilliamH]

I read that the green head mallard duck is a male. Does that also apply to Rouens? I have a Rouen that sounds like a drake but I’m not sure.

 

[Stipenvlerk]

As far as I know Rouen ducks have the same color differences between male and female as the wild mallard. So I would say the one in your picture is a female.

 

[Rouen2020]

That sure looks like a drake to me. Greener bill and the pattern on his chest is more spotted.