I have considered a Fayoumi. It was very pretty dark rich colored for a "wild type" pattern as a chick. I probably have a picture on my phone somewhere.... It's the only one that narrows down through process of elimination.
However I once got a Salmon Favorelle without any face furnishings in a group that the rest were all appropriately furnished from Cackle. I guess it's possible but... it's kind of fun but anxious to figure out the mystery chick.
I also got a Feather Footed Female Assortment that I'm getting to decipher as they mature. Those are a bit easier than this wiley little thing.