Voice sexing 9 week old ducklings?

[KikiDeAnime]

Someone is selling 2 nine week old Runner ducklings and I really want to buy them but I'm not sure if they're old enough to voice sex. I'm fine if one is really a female as I'll still buy both but I don't want to buy them if both are males.
They sent me video of both making noise but it's confusing me.

Is 9 weeks old enough to voice sex?
Does anyone have videos of their ducklings at 9 weeks old to show?

 

[PaulX]

Post videos for us.

These are females at 7 weeks old, already sounding like adults. Males would still be hoarsely peeping.

 

[KikiDeAnime]

I can't share the video because it was a comment video on a post in a private facebook group. One was peeping like a duckling while the other sounded like it was whistling

 

[PaulX]

I can't share the video because it was a comment video on a post in a private facebook group. One was peeping like a duckling while the other sounded like it was whistling

Probably both males then.

 

[KikiDeAnime]

Darn.. that sucks

 

[PirateGirl]

Yes you can voice sex at 9 weeks. YouTube has lots of good videos. If they still kinda sound like babies peeping they are probably males. Girls should have loud quacks/honks by then.

 

[KikiDeAnime]

Looks like I'll have to keep searching then.

 

[WannaBeHillBilly]

Girls: Peep Peep Peep Quax!
Boys: Peep Peep Peep Peep!
At nine weeks, every duck that is still just peeping is a boy. Some girls start to quax with just three weeks.

 

[Magnolia Ducks]

I have one hen that has started Quaxing at two weeks. My runner mix drakes go through a whistling stage before rasping. I agree two males.

 

[featherhead007]

You raising ducks, or Elvis impersonators? kidding!