Does anyone know if RIRs are more aggressive as chicks? And possibly crossbreds as well showing signs of aggressiveness? I have 90 mutts whose sire was a RIR. The mothers were EE, BR, Columbian, Brahman, Turken, Buff Rock and BOs. I would have thought that the BO crosses would have been the more docile but are proving to be the most aggressive in the lot. Any thoughts from anyone else that has had any experience raising mutts? I don't think I'll cross anything with RIR ever again!