Mule ducks: how do you spot them and sex them?

Tatum hills

In the Brooder
7 Years
Oct 15, 2012
12
0
24
I have hatched my first ever lot of ducklings last October and I know 2 of the 8 will be mules as their dad is a mallard breed (crested drake) and mum is a Muscovy. I was told it'd be obvious who the mules are but not to me :( Six of the ducklings now make a definite QUACK, but 2 are larger than the rest and make a funny noise which sounds more like a Muscovy than a drake to me. My questions are :
1. Do drakes take time to perfect their call like cockerels?
2. What sound and other features do mules have that may help me identify them?
3. If the mules don't quack, how do I sex them?
 

Buck Oakes

Songster
5 Years
Feb 9, 2014
2,472
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Madison/Gluckstadt, Mississippi
Also it's hard for mules to actually be bred, only some percent of eggs are actually fertilized, I think 60% but then more are lost because they're anatomy doesn't match the Muscovy hens eggs size, or the offspring are to frail and can't even hatch so if u got a good portion of mules then great :)
 

Tatum hills

In the Brooder
7 Years
Oct 15, 2012
12
0
24
Thanks for your replies but there seems to be some confusion. I don't have a Muscovy drake, so I know none are pure muscovies but my question is: do the Muscovy x mallard quack or not? And if not how to you sex them? I know mules are sterile which is why I am trying to work out who's who as I don't want to sell a mule to a breeding home.
 

Buck Oakes

Songster
5 Years
Feb 9, 2014
2,472
132
201
Madison/Gluckstadt, Mississippi
And I think it's a mallard derived male to Muscovy female that makes hinnies, I'm not sure, hinnies are primarily female and lay eggs with early any being fertile but there have been cases where some have had offspring with a Muscovy male.

If I'm wrong then they are mules who r primarily male
 

sourland

Broody Magician
Premium Feather Member
12 Years
May 3, 2009
121,107
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All are hinnies/mules and even if they lay eggs, they will not be fertile. @ Buck, hinnies that I raised as a kid never laid eggs.
 

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