Is this a Mallard?

[nettie]

Hi Guys,

I know the rule for stripes when it comes to Mallards v Rouens, but what do you think about this little guy? He's only got one stripe...

 

[StevenW.]

Muscovy?

 

[desertdarlene]

Actually, he looks muscovy. Perhaps a mule?

 

[nettie]

hmm muscovy.... that makes things interesting, esp when trying to figure out how big he will be....

 

[THunter]

Ugly duck. I mean muscovy.

 

[lovesgliders]

He's adorable, that's what he is!

Just outta curiosity, what is the stripe rule?

P.S. Love your icon & your website!

 

[animalpro24]

I'm thinking Muscovy.......post pics when he's older.(if you still have him)

 

[Big Dreamer]

Muscovy!! You lucky duck!

 

[Duckchick2011]

I'm thinking he must be a muscovy...

 

[learycow]

I would say muscovy too. They usually have the lone stripe (unless they are a solid color). Plus, if you look at the tip of the bill, they have an unusually large bean, which tends to get larger as they grow.
Here's a picture of my youngest Muscovy ducklings. You can compare them to your's, or at least the facial striping and the shape of the bill.