I have 2 RIRs. One is a little larger and has much larger comb and wattles. More than the BRs and Buffs also. The legs are thicker but so are the legs of the other RIR that doesn't have the comb and wattle development. Other than that it acts like a hen, no posturing, dominant behavior or crowing attempts. I haven't had RIRs before and wonder if they just mature differently or maybe I have a roo. My camera is on the fritz so no pics. If someone could send pics of 8 week old pullets and cockerels for me to compare that would be great. BTW I live in Stilwell, KS. Thanks in advance for the help.