The Buff colored ones are probably Buff Orpingtons, and the white rooster is probably a White Leghorn, Cochin; there are so many different kinds of white chickens! Does the black spots look like bars? Pictures would really help.
They were pretty slim and didn't look like they would be big fluffy BO's. I think they were about 10+ weeks old. I didn't get pictures! The white ones were completely white except just a few black spots on the back. (I think) The friend just wanted to know what they had.