It's silkie and something else, possibly Rustic Rambler, which would explain the name. I called the hatchery they came from, after tracking them down. They're from Fifth Day Farm, which is one of the hatcheries under the Freedom Ranger hatchery umbrella. The person I talked to was just a sales...
I tracked these down. We got more in at my feed store, so I was careful to check out which box they were actually in. They came from a farm known as Fifth Day Farm aka Blue Banty Farm, the info for which can be found on the Freedom Ranger Hatchery Website.
So I called them. These are indeed a...
Townline hatchery, I'm betting. That's where the ones mine from TSC came from. I already looked through all their birds and they don't offer anything like this. So my best guess is it was either a 'whoops' breeding, or they're working on some kind of new hybrid but haven't really put the info...
Where did they come from? Strangely enough, the feed store I work at just got a shipment of chicks that the hatchery sent only as 'pullets' with the same traits - black skin, feathered legs, five toes, most of them black in color.