Voice sexing ducks

[Drachma]

Hi there.
Sorry that this is probably a repeat thread, but I'm new to duck ownership, and I'm hoping for some opinions from some more experienced duck owners.
I have 4 ducks that I bought as straight run, and I'm trying to determine their sex. They aren't fully feathered yet, and I'm just too much of a novice to really tell by voice.
I have 3 Pekins, one of which I thought was a male, but now seems to be quacking more. I also have a Khaki Campbell that I thought was a hen, but is the quietest of the four!
Any help or opinions are greatly appreciated.

 

[Jadis]

Sounds like the quacking one is a female. Quiet one is probably a male. But some do quack later than others.

Just watched the video, They seem to be past the peeping stage. Pictures go fast and trying to figure which is making the loud quacks is a bit hard. But you definately have more than one girl. I heard at least a couple loud girls.

 

[Jadis]

They are simply adorable.
Just so you know. I have a girl Pekin named Howard, A boy Rouen named Dorothy, A boy Mallard named Candice. Somehow those are the only ones we got wrong as babies. Out of a lot lol.
And my profile pic - Mr. Magoo... started quacking and letting us know she's a girl about 2 days ago.
Once they're named I keep it. They don't seem to mind at all.

 

[Drachma]

Thank you! I think so too.
I don't know if the khaki's name will stick, but if Hodgins turns out to be a hen she's stuck with the name. She/he's definitely "king of the pond"