I stand by my opinion that a breed is a breed. I have already stipulated that not all of a breed fit into the "Standard of Perfection" that a show bird is judged on. Because a RIR is not as dark as the judge would like it does not disqualify it from being a RIR. It just means it does not fit the APA's American Standard for Perfection. The RIR is the most popular dual purpose chicken in America. They are a dual purpose breed, as they were intended. They were bred to be hardy, consistent egg layers with sufficient size to suit the table. Color was of little consequence except for the Roos. Red was the dominant choice due to the vigor of those roosters. The breed was developed in the NE as far back as the 1840s. The APA did not recognize the breed until (as far as I can tell) 1904. The common desire to have a breed recognized by the APA or any other breeding association, in the last century was to increase marketability. Some say that breeders not true to the RIR brotherhood crossed their birds to increase egg production. Of course there is no evidence to support that other than tales of the breeders that lost market share because their birds were not keeping up in the egg production arena. Could it possibly be that breeders that were intent on filling a void in the market bred within the breed selectively to increase egg production. The so called Production Reds beat out the "Heritage" line in a Review of Poultry contest with strict breed rules and official judges. Are we to believe that the judges had it out for the Heritage line or that they allowed cross bred birds into the Review? Money was the motivator for breeders then as now. One of the primary breeders of the RIRs, Kenneth Bowles, also developed the NH Reds. What was his motivation? Some say to capitalize on the popularity of the RIR. BTW, he sold several truck loads of NHR chicks.
A lot of the so called heritage breeds are considered rare or otherwise endangered by the American Livestock Breeds Conservancy because there are fewer and fewer of "heritage" birds. In the poultry arena, specifically chickens, most of the breeds are only short in the "show" birds not the breed. All breed standards are man made (and in the case of RIRs, it is said to be six men in a tavern) and in some species, they have even changed over the years to keep up with what is popular or best for the breed. The common thread for chickens and the rareness of specific breeds is that the heritage breeds were not able to keep up with demand of the keepers. There is less desire for a pretty bird vs one that can produce more eggs.
Another item to keep in mind is that the RIR breed has only been a recognized breed (by the APA) for a little more than 100 years. It has been a breed declining in "show" quality birds for more than 60 of those years. The entire RIR breed was devised from cross breeding several other breeds, which is how ALL American breeds came to be. I believe that it only takes five generations of out breeding to get any American breed back to the original Jungle Fowl. If that is in fact true, is it not reasonable to believe that selectively breeding within the breed would allow for great variation in size and color over a very short span of time?
I have nothing against "show" quality birds or preserving heritage lines or the folks that take pride in raising them. I admire their discipline and dedication. To tell me that my birds are not REALLY RIRs makes for a silly argument. It is like saying that the birds in Rhodes Island and Massachusetts in the 1850s were not REALLY RIRs, that Mr. Jenny's birds of the 1880s were not truly RIRs
I selectively breed my chickens for my own purposes. I wanted hens that are more broody because I only use bio-bators. So I breed my broodiest hens selectively in the hope of producing a broodier set of RIRs I also want to increase the overall size of the birds in my flock so I breed the largest hens selectively. I doubt that the overall shade will darken much, but they are still RIR chickens.
Now for one last item; how did we manage to come up with RIR with rose combs? Were these birds cross bred, or selectively bred? Or was it a combination of the two? If they were cross bred why do we call them RI anything? If they were selectively bred, how is it that somewhere along the line they assumed a previous comb. Could it be a recessive gene in there somewhere?