I have a question about sexing my duckling. He's over a month old, almost 2. I heard that females will start to quack around this time. My duck is still making the "peeep peep peep" sounds. Because he's not making any other sound yet, I want to say he's a drake. My friend thinks this rule of thumb does not apply because my duckling isn't around other ducklings. I don't think it matters. What do you guys think? I'm really hoping this duckling is a drake because we have 3 older laying females and it would be great if we could get them to hatch some eggs.