I am still trying to figure out two of my pullets. They have thick, sturdy yellowish orange legs. They are also get black feathers in their tails. I was told they were RIR's when purchased, but kinda doubt.
A friend of mine has RIRs and hers has got black in their tail feathers. I have a New Hampshire that has a black hackle and I never saw that on a New Hampshire before. At first I thought he was a mix breed but he has yellow legs. He has the best temperment of all my cockerels so far.