If he's black and white, he's most likely a black Cochin. Dark Brahmas are more brown and "muckledydun" (as my mom puts it); they feather into black and white later, and some have brown feathers up until their adult molt. Black Cochins can have various amounts of white fluff on them (just like Giants and Australorps); some look more like penguins than others, and once in awhile, you can find them with no white at all. What kind of comb does he have? If it's a pea, he's a Brahma; if it's a single comb, he's a Cochin (unless he has muffs, crest and/or an extra toe, in which case, your LF options just got a lot more interesting). Dark Brahmas actually look very much like muted partridge chicks--lots more gray in their down than normal partridge chipmunks.
This is why I like this place. Great information. Leaning heavily towards Cochin after looking at chick pics again. Will check for extra toes later. Want them to get settled before I'm messing with them much.
Can you tell combs this early? I blew the picture up and it looks the same as the Australorp who I had a similar angle of.
Noticed the brahma almost have a chipmunk look to them in some of the photos I saw. Seems like Cochin is where it is.