What gender are these following four ducks? 9 weeks old!

[Obyli]

They are buff, Welsh Harlequin, Blue Swedish:

http://i56.tinypic.com/2l8j8xx.jpg

 

[Stormy Autumn]

The Welsh Harlequin looks like a male because of his coloration, but I'm not sure because I'm not too familiar with that breed.

With the other three, you wouldn't be able to tell yet just by looking at them, but you should be able to tell by listening to them. The females are probably making a louder, honking sound and the males are probably more raspy. I think my drake sounds like a frog.

Eventually the drakes will get curly tail feathers, but yours are too young for that.

 

[Obyli]

Bump Bump! Help Help!

 

[SassyKat6181]

Don't bump yourself, people get mad. You should be able to tell by voice what the sex is. My females were definitely louder and the boys make more of a raspy, whisper noise. My guess is the one in the bottom of the picture is a male due to the yellow/green of the bill.

 

[Amiga]

My girls started honking instead of peeping by four weeks of age. Drakes make a whispery, muttering noise, and girl ducks make a quack or wak or for my runners, an "ah AH ah ah" sound, not super loud, but not quiet.

Someone once said, "pick one up. If it makes a bunch of noise, it's a girl."

 

[Obyli]

LOL, i pick all of them up and they all make noise. The buff one make kinda Quake but beep at the same time. I dunno what to say. My smaller whitdish blue swedish make quake noise which i think that she is a she for sure. The other two i dunno.