I contacted Greenfire Farms about my Coro X Light split sussex. The gentleman I purchased them from stated they were from Greenfire Farms. Upon further research I've found several folks claiming their splits were from GFF (and I'm not saying they're not). Just to clarify to folks like me who are new to these designer chickens (they're like pokemon cards, gotta have at least one of each kind ), I contacted GFF to find out if they sold/have ever sold coronation splits. They were awesome, answering my silly question right away! They're answer is below. I also asked if a chicken had the coronation coloring, if it was actually a coronation or a split with coronation colorings. If I managed to get some coronation chicks, I didn't want to misrepresent them as coro's if they were actually splits. They also answered this, and I was pleased with their answer We never sold coro splits, but a lot of breeders do it to boost genetic diversity. A coronation is a homozygous Coro/Coro, so if it looks like a coronation, it is a pure coronation. Hope that helps. So, if someone says their splits are from Greenfire, they are not direct (as I've been told several times on different forums they've sold them) from GFF. The chickens may be from GFF breeding lines, but the breeder did the actual splitting. Which I hope, then, that if a breeder says their splits are from GFF lines that both lines are from GFF and not just the coro's. In other words, I would hope that if they say they are from GFF that the coro's and the lights are 100% from GFF, and that the breeder isn't breeding in 25% GFF lines and 75% Fred's chicken farm breeding line, and using the Greenfire name to infer they are 100% from Greenfire farms (what I would expect when someone says their chickens are from Greenfire Farm lines). Thanks, Greenfire!! I appreciate when a business with entertain silly questions from someone who is not even buying anything!