It's true that conventional sex links may not have feathered legs, but I can create Black Sexlinks with a Black Copper Marans rooster over Cream Crested Legbar hens to get feather-legged birds that, at a glance, look like a Black Copper Marans hen. Usually, there's some small head tuft, and of course, they lay an olive-colored green egg. He may be "pure" Marans, meaning he came from two Marans parents, but them throwing chicks that look like that would lead me to wonder what went into producing that variety. Clearly, the birds aren't pure for the variety. I've just spent thirty minutes playing in the calculator and reading about them. They are very much a project from what I gather. People are crossing Wheaten into them. I can't even determine what they are supposed to be genetically to put a pair into the calculator and then tweak genes until I get a male like him.