I have been seeing some wacky looking Barred rocks on the Breed/gender page that are coming from big hatcheries, especially birds from TSC which gets most of their birds from Hoover’s.I don't doubt the expertise of this site's posters, you've not steered me wrong. I'll get a better photo in the next day or so, and check the leg color very closely. There is no feathering on them, that's clear. I would note however - and I know its not visible in that terrible photo - that his fluff and hocks are uniformly grey, there's no discernable barring at all - unlike any picture I can find of any Black Sex Link, Barred Rock, Marans (which, honestly, seems sort of expensive for a possible TSC bird), or the (eliminated by comb) Dominique.
of course, our TSC uses Hoovers, and judging from my other 30+ birds, Hoover's flocks do not have crisp clean colors or patterns.
But this thing looks like someone glued a BR top to some grey/blue bottom...