He is a silver gened black. Most people when breeding try to stay away from that because its hard to get rid of as soon as its introduced.
But they are good to breed to Greys.
He is a gorgeouse boy....
I have had greys hatch out partridge before.
Greys can hatch out all black, white or the chipmunk stripes
I wouldnt get rid of him! I have a roo just like him and what a sweetheart!!!
If you need to just separate him into a second flock with a few grey girls. He cant help who he is!
He's an off colored black. If you want to breed him, cross him with greys, preferably lighter colored females, not blacks. He likely came from black stock.
All black silkies (for that matter all chickens, regardless of colour) are either gold or silver gened. Males can have a copy of each. The S gene is not what causes the silver hackles!!!
The E-allele of the bird combined with the specific melanizing genes absent from his genetic makeup are why his hackles are not black.
He would be fine bred to greys; he could also be bred to partridge--daughters would be grey; sons would be Ss. The pattern on the offspring might need work.