I thought for ever that Flip and Flop were Anconas or Magpies but now im not so sure. Thats an aweful lot of green sheen in their feathers. This is Flop below vvvvv
She does not like to have her pic taken let alone being held. so the pics i got is all i can get right now.
Looks and sounds suspiciously like a Muscovy, especially when you mentioned the green sheen. But, I don't see any crinkling around her face, but sometimes female Muscovies don't have that much. Other than that, I don't know.
Flop's sister, Flip, is similar byut she is mostly white with just a few black and green spots on her. Definately NOT muscovy... Very loud quacker, and no "facial leperacy".