OK.. all my babies hatched on the same day, but Ursula (aka "Gigantor") started growing much faster than the others and is now much larger, although the Welsummers are starting to catch up. I've not heard any crowing. S/He does stand off and "guard" the rest of the chickens when I put treats out for them - is that "rooster" behavior? So.. at 5.5 weeks, can anyone tell me if Ursula, the white Easter Egger is a pullet or roo? The white one in the back. It's hard to tell in the pic, but the comb is pinker, but not necessarily bigger than the other chicken's combs.