assuming they have a single comb, the two that have gold heads and are barred look like gold campines, but I'm guessing that was one of the ones you already knew.
The one with the white head and black barring could be a silver campine or an egyptian fayoumi. I just did the breed page on both of these and they are extremely hard to tell apart. From the research I did, if she is smaller (even if its just a little smaller) than your gold campines she is probably a Fayoumi. Another clue, if her legs are lighter in color than the gold campines she might be a Fayoumi.
I did a lot of research on this because I have two chicks that looked like your. I had an easier differential than you do because one of mine had green legs and the Fayoumis can either have slate or willow green colored legs.