Gold Sex Links, Amber Links, and Isa Browns are all essentially the same birds--just marketed under different names. They are all Red Sex Links, produced by crossing a red rooster (RIR, NH, or Production Red) with a white/silver hen (RIW, WR, Delaware, or Lt. Sussex). They can be sexed at hatching and are all great layers of large, brown eggs. Other names by which Red Sex Links are marketed under are Cinnamon Queen, Bovans Brown, Golden Buff, Amber White, Amber Star, Red Star, Golden Comet, Hubbard Golden Comet, Shaver Brown, Babcock Brown, and Bovans Goldline. Since buhumphrey's Red Sex Link pullets were marketed under the name Gold Sex Link, I suspect that this Red Sex Link cockerel was as well.