Sexing ducklings by the bill color

[Lynette]

Our local tractor supply store has White Pekins, Rouens, and Blue Swedish ducklings. Is their any way of picking out females other than vent sexing them. Maybe by the color of their bills? Pekins look the same so probably not for them.

 

[duckyfromoz]

Welsh Harlequins can be sexed by bill colour - But pretty much - in all others their is nothing in the bill that can indicate sex.