I bought our only rooster @ the Colorado State Fair this fall I "thought" he was a B.Rock, but browsing SandS website today, I found a picture of a Cuckoo Marans, and it looks" EXACTLY" like my 8 mo.old bird. I want to add Marans, Australorps, Salmon Faverolles, and Welsummers this spring ASAP but not sure who I want to buy from ? Is there a positive I.D. for either a B.R. or Marans??