Mystery Mixed breed! Maybe RIR and Barred Rock?

[vyyouvyanybody]

Any ideas on the breed of this one? She (hoping it’s a she) was hatched from a brown egg that had Rhode Island Reds and Barred Rocks. Her feathers are very different from the Reds, though. Is she a mix or something different altogether?

 

[RoostersAreAwesome]

Looks like a Rhode Island Red mix, though I don’t think she’s a first generation cross of barred rock x RIR.

 

[ColtHandorf]

I see the RIR (production/hatchery vs breeder/show-quality) with the bright yellow legs and partial red. But I agree, it doesn't look to be an F1 cross from a RIR x BR. What were the possible parents? What breeds are roosters and what breeds are hens?