I have one Australorp cockerel (from BBS parents) and one mixed cockerel (father was Australorp and mother was either a RIR or Black sex link). I bought the hatching eggs and the seller did not mention that there were a few RIR and Black sex link hens free ranging with the Australorps. Some of the Aussies were black and a few were blue. The pure-bred cockerel is black but could be split to blue. Free, in Souhern Middle Tennessee. I can meet in Giles, Lawrence, Maury, or Wayne County TN or Lauderdale or Colbert County AL.