I just picked up my chicks on Monday (2BR's,1Bcopper maran and a few other types) I'm reading this thread and running up and down the steps to look...lol Now I know i only purchased 2 barred rocks and they both look like the chicks in your pics with the white spots on their heads, and the one that doesn't have the spot i'm guessing has to be the Maran. A few threads say check the color of their feet/legs and unless i'm going color blind, they all look pink to me..lol Guess me and you both will be looking to see what comes out of them..lol