can you tell if these ducklings are boys or girls by their shape??

[Duckieduck]

We have three 3 week old Rouen/Khaki Campbell ducklings. Someone told me you could tell their sex by their shape. Is that true??

 

[Top Rooster]

You have to wait till they get feathers and the males will have a curly feather at their tail

 

[chickens really]

They need to mature a bit more .......At around 6 to 8 weeks they will either QUAcK or sound raspy......Drakes are raspy...Hens quack......At around 4 months they will molt and that is when Drakes will grow the tail curl........Colour also can tell the sex early...


Cheers!