Not sure of the breed but they look like females to me. 

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Nice names. And I'm glad you didn't name one of them Tab. That stuff tastes gross.My avatar is one of the chicks, Fanta. I named all 5 after sodas. Sprite, Fanta, Root Beer, Dr.Pepper and Coca-Cola or Coke for short. All in order
their mom, Sugar did take a while to fully feather. Maybe......?That makes sense, but they should be more feathered out at that age, unless they have some kind of slow developing breed in their ancestry. Anyway, it's good news that none look like cockerels so far. Hopefully it will stay that way!
That could be it. You just never know with mixed breeds. They look healthy, though, and that's the most important thing.their mom, Sugar did take a while to fully feather. Maybe......?