momofchicks, I really dont know myself, sorry! May have to wait a bit for her/him to get the adult plumage. They change so much over time. And if it's a cross/hybrid, it may be impossible to really say for certain. Sorry I cant be more help today.
You know, Michael, I didn't even think about rose combed RIRs since so few have them, so I stand corrected. Julie has them and they certainly could make sexlinks. Just never saw one is all; a black sexlink with a rose comb, that is.