Getting voices?

[corriemartin]

Hey duck people, is it normal for ducklings to get their voices at different times? Out of my ten ducklings, three are most definitely quacking, and a couple are making another rather unique noise, and the rest still sounds like babies.

 

[DaYooper_Duck]

This sounds interesting, so I am bumping it for a faster reply!

 

[Ratchnick]

The quackers are ducks the others are drakes. If it still goes peep peep then can't tell yet.