What on earth are these ducks mixed with?

[TonytheDuckisStuck]

We are trying to figure out what on earth these ducks are mixed with. We were told the one in the front is a mallard welsh harlequins, but they have already grown at least twice as large as our mallards. Possibly Rouen, but they're all starting to look so different. The second picture is the mixed bunch, and then them as little's. What do y'all think? Just out of pure curiosity. Thanks in advance!

 

[Kiki]

Where did they come from?

 

[Duck mommy 2019]

rouen pekin mix

 

[Crestcrazy2]

The blacks look like white bibbed cyugas , and are the other ones possibly harlequin or not ? ( Not sure but cute ducks )!

 

[Magnolia Ducks]

The first picture left from is a WH/Saxony mix

see the eye stripes that's what the WH/Saxony ones are in this picture. The black bibbe d could be anything. The black bibbe d in the picture is Pekin/Fawn and white runner mix.