A number of hatcheries (not just Ideal) state that Production Reds are RIR x NHR. I'm curious as to why you would question their claims. Do you have some kind of evidence or documentation to the contrary or is this just a personal opinion?Production Reds are no more than Reds from hatcheries. That is it. There is no formula, certain breed crosses, etc. Ideal advertises their Production Reds as crosses of the NH and Rhode Island Red. There may be some truth in it, but the truth is that they are single combed red birds with yellow legs.