I have 5 chicks, probably 2 weeks old. My white EE is decidedly different than the others! (2EEs, BO, Barred Rock, Australorp) It doesn't like to be held -- tries to run away and then chirps it's head off while I'm holding it (occasionally calms down for a minute). And once when I took the other chicks out for an outdoor venture and then came back for the EE, the sweet little thing was going CRAZY without the others there! I've never heard it chirp so loud. Also tends to be one of the first to investigate something new. I never knew they'd all have such personalities! My little Buff Orpington is so mellow she's like a cuddle toy!