Thank you for your help. I was almost certain for the longest time it was a hen. I got two white rocks at the same time and this barred chick grew much bigger and faster than the other two. Although much smaller, it became obvious both white ones were roosters. The combs grew faster and they got sickle feathers probably a month before the barred began to grow them. They also both crow but the barred rock kind of just makes two syllable noises.