I was given three Rhode Island Red “Hens” one looks different. Is “she” a RIR?

[DemeChick]

Rhode Island Reds have some black in their tails and maybe bits of black in other parts of their feathers, even when they are hatchery stock.

The birds in the first post have the black is turned to white, which means they are not Rhode Island Reds from any source. (Or one might have some blue instead of white, but it is definitely not black, so it is still not a Rhode Island Red.)

I appreciate this knowledge.