My chicks looked about 1 week old when I got them. I believe they are now 5 weeks old. Two have feathered out nicely so far but one is seriously delayed in feathering. I fear this is a rooster not a pullet. I tried to get good pics. It acts like a rooster as attitude is seriously there. But I had a hen years ago that I thought was a rooster but she was just a lead dominating hen. The bored in question is the light colored one with less fathering. It doesn't have 3 rows to its comb but a lot larger? Maybe a different mix with ameraucana?