I'm guessing that, since they're smaller, the yellow ones are Old English Game Bantams, probably BBR.
Reds are probably Rhode Island reds or red sex-links.
Green may be a blue andalusian.
The rest I'm clueless on. The coloring of the white one looks like a male red sex-link, except mine didn't get red on their wings that early. So who knows!
the "brown" look like my buttercups (see below). They are easy to tell for sure as they have a funky "buttercup" comb...it is a double row, shaped kind of like an oval?
okay... 'green' looks like two that I have that were I.D.'ed by some awesome members on BYC as Crele Old English Game Bantams. Cackle hatchery has a pic of them on their website.