I realize that a production red is a RIR but that they are in some way different. Is it that they do not meet the standard set for RIRs? I've read posts where people are able to pick out a production red from a standard red and I've been trying to figure out what it is that gives them away? What can you look for in your chicken to decide which it is? Just curious because I have one RIR from a hatchery and one from a breeder.