What breed of ducklings are these?

[HeyHey]

I just got 2 new babys but I dont know what kind they are.. The guy at the feed store didn't have a clue about any of the birds.
Any ideas????
Thanks for the help

 

[Gray Farms]

Rouens

 

[Pyxis]

Likely they are Rouens

 

[HeyHey]

Thank you I was afraid they were Mallards. I dont want them to be flyers, our neighbors leave something to be desired.
Thanks again