Question re: Welsh Harlequin genders

[nao57]

So I wanted to ask what's the earliest you can tell gender on welsh harlequin's? (Without having special techniques, and looking at feathers, bill, etc)

I had heard this breed is easier to tell the genders on, but I had forgotten the details, and not sure where to find them in this forum.

 

[Isaac 0]

You *can* sex them right after hath with a 70% accuracy by looking at their bills.

https://saltinmycoffee.com/how-to-sex-welsh-harlequin-ducklings/