Identifying Coloration, Voice, and the Sex Feather Females do not have a sex feather. Venting is even more difficult in ducklings than adult ducks, so ask a.
You can determine the sex of a duck by listening to the sound of its quack. At about 10 weeks of age, the voices of all domestic ducks (except Muscovy ducks) .
Telling the sex in adult ducks is obvious - ducks give a loud quack and drakes make the quieter Donald 'Duck' scraping noise. This voice-change from the.