How To Determine the Gender of a Duck
Telling the sex of a duck is easier with adult ducks but if you have the right tricks you can determine the gender of a duck as young as a day old.
Male ducks are usually more colourful and distinctive in their patterns. Take the mallard for example – male mallards have bright green feathers on their head and a white ring around their neck whereas females are more muted, being brown or grey for example. However colours are not evident until adulthood so if your duck is young other methods will be needed to determine its sex.
Compare your duck in size to other ducks. Usually males are bigger.
Once a duck is around 6 weeks old it will start quacking. Male ducks quack quieter than female ducks do.
At around two months of age male ducks will start growing curled tail feathers whereas females usually do not.