I know. I was mainly just confused why the two fill siblings looked so different. The cockerel had 3 siblings matching him when they hatched, but 2 didn't make it and the 3rd was a FtT. The Golden one is the only one from that batch that hatched that wayIts quite difficult to estimate or guess what is on a F1 with hatchery stock and it would appear that Hatchery Sebrights have additional variables like Hf, hf+ and R,r+