Sorry it isn't the best picture. He is blue with gold/red around his chest and neck. Would this color rooster still be usable for black sex link chicks (with bared rock hens)?
Yes, they will be blue and black. I just wanted to make sure with the gold/red on him that they will still be sex links. I am pretty sure they will produce sex-links but didn't want to sell people females and they turn out to not be sex lined.
Black Sex Links often (usually) have a red rooster as the sire. The blue is what throws it off a bit by giving you 4 genotypes/phenotypes instead of 2.