I see a Gold Laced Cochin cockerel, a Barred Cochin cockerel and a Barred Cochin pullet. The clean legged pullet looks to be a mixed breed. How old are these chicks?
Your barred one is a cockerel. Boys get a double dose of barring from their mum, giving them a more white appearance.
Your brown one with the feathered legs has a straight comb, both look like yellow skin... guessing Cochin or Cochin cross. Can't see waddles, but comb is looking red already on that one.
Need better pics of the black one to make any guesses at all. Age also helps.
ETA: Oh goodness, I see the next pics that posted now!
I don’t have an exact age. The eggs they were incubating didn’t hatch so the teach went an bought a bunch of chicks from a local farm. my best guess 8-10 weeks
So which is the barred cockerel? Lighter or darker one? Sorry my others that I purchased were easy to tell. And great if there’s 2 Roos in there I’ll be try to find homes for them soon.