Thanks you guys!
The one in front was advertised as a Rouen, and from Irisdescent's link (THANK YOU - that was really helpful!) it definitely looks like a female.
AND I just read on another thread that the gold WH's don't have sex-linked bill color - is that true? That would explain it! So she (please be a she please be a she) could be a she.
Do you have any sense of how old either of them is?
They are both so sweet and playful, I'm in love!
I haven't heard that, so I don't know if it is or isn't true.
I don't think those ducks are eleven weeks old. I think five months is more accurate, but I couldn't give an exact age. You'll need someone with lots more experience than me to give you an exact age.
As for gender, the possible WH is a female. Males have green heads by the age she looks - or at least heads that are turning green. If she is a WH, she certainly wasn't bred to the standard, as females should have black bills. But Metzer's WH hens often have yellow bills. It just means you can't show her.
The harlequin pattern appears in a lot of different breeds/mixed breeds, so someone with more breed knowledge should help you out as far as breeds go.