Sex linked genetics!?

[Apocha14]

Silver dorking hens under a welsummer roo? Would that create a sex link? Or cuckoo maran hen under black copper maran roo? What would I look for when hatched if so?

 

[Pyxis]

Cuckoo marans hens under a black copper marans rooster would create black sex links. Chicks will hatch black, and those with a yellow spot on their heads are cockerels. I think silver dorking hens under a welsummer rooster would create red sex links, but I'm not sure how easy it would be to see the dimorphism. This thread has really good info on breeding sex links: https://www.backyardchickens.com/t/261208/sex-linked-information