She's not a RIR I would say she is some kind of production red...
If she was a RIR she should have more black in her tail and more even in color, yellow legs, red eyes......
Chris
Where did you get them at and how old are they?
Rhode Island Red's legs are yellow (some times with a tinged of dark red) and there eye color should be red...
If you could post a picture of a bird in question that would be good..
Chris