I have one SS pullet and one SS cockerel, there was no difference in feathering, the only way we could tell any difference was the comb, and then the crow at 7 weeks. Looking back, these are signs I missed: first, he was adventurous and his eting habits were different, he did not like to share, and when he ooh food out of he feeder he made a mess, he threw food to each side and then ate, I just thought he was picky. He was the leader, and was the first to offer suggestions on how to gt into trouble to he others. He would dance and seemed to corale the others. He was clearly the boss. He liked to sleep in the back or the front of he chick pile. He liked attention from our cat, he was really brave and sought out attention from the cat. He was always louder than the others. His feathering in the front, there was a ton more white on his chest, now this is also something that can happen in pullets, but from all of the chicks that I have seen people wondering if they are cockerels, most have the white chest. His coloring as a baby was redder than the brown of our pullet. This is my first experience with chicks, but the amount of research we have had to do, because this began as a three year study on backyard farming for a school project for my middle school age son. We have had to do a lot of watching of behaviors and watching behavior as it applies to environment. We have 6 chicks, 5 we will have for the entire three year experience. If you want to see the chicks, he has a FB page called Hunter's City Chicken. Hope you like his page, it is awesome. [/CODE]