One of my midnight majesty marans (hoover's name for them) has the black copper marans neck coloring. They mostly have feathered feet. If her hatchery Meyer?? has this cross by another name, it's a black copper marans rooster/barred rock hen hybrid, might get some nice dark eggs!The feather-footed lady with the gold hackles might be a Black Copper Marans. She doesn't look floofy enough for a Cochin to me.
Our Silver-Laced Cochins have such long, full foot feathers that I occasionally step on them when they're crowding closely around my ankles as I work in the coop/run.