Is my duck a male?

[Sublime69]

I have 4 Cayugas and 1 runner. They are all 6 weeks old. One of the Cayugas has a very loud raspy "quack". The rest just kinda cherp still. Does this mean I have one male? Or is it too soon to tell yet?

 

[Miss Lydia]

I have 4 Cayugas and 1 runner. They are all 6 weeks old. One of the Cayugas has a very loud raspy "quack". The rest just kinda cherp still. Does this mean I have one male? Or is it too soon to tell yet?

This is not a Cayuga drake but it typical of how a drake sound they are much quieter in their quack than the duck is
http://www.bing.com/videos/search?q...&mid=2A0B284743C2A91177D82A0B284743C2A91177D8