2 EE chicks black one is 9 days old. Brown one is 8 days old. Big diff in growth up to this point See the red coming in on the shoulder part of wings. . . . roo? the brown one is 8 days old. . . feathered out alot, and quick too! , especially compared to the black one which was hatched out a day earlier. Black one is 9 days old, brown one 8 days old. Huge differance in feather growth, look at wings, shoulders, tail. . . does this mean that the brown one is a roo?