TSC ducklings breed?

[Shugercube]

Most ducklings look alike to me so I need help!
I’m thinking either mallard or Rouen, and I know there’s a way to tell by their “eyeliner,” but after comparing several pics of both breeds, I still can’t tell the difference.

I tried to get good pic of their eye areas. Their legs and feet are a very dark grey/brown color, but with lighter pinky/tan along the sides. Three ducks, tried to get different views of each but they’re busy little guys!

And just to get a better view of foot/leg coloring *out* of the water:

 

[SilverBirds]

I'd go with Rouens.

 

[MGG]

They all look like Rouens. There's a stripe below the eye stripe on Rouens, with Mallards it doesn't connect. But TSC's Rouens seem to be losing that feature, probably because the quality is plummeting. You can see on a couple of them where it partially connects, on the one it doesn't really at all. But the thick body shape is characteristic of Rouens so I'm guessing that's what they are.
They're adorable!

 

[Shugercube]

Thanks all!!