How old is Squeak Squeak? You won't hear any quacking or honking until 4 weeks or older. The sooner he/she quacks or honks, you can usually tell that it's a girl. My pekin ducks are about 5 weeks old and fully feathered and there is one that still doesn't quack, so I'm sure he's a he. After several months, the males' feather trail will curl upwards. Females' trails stay nice and straight.