So I'm on my first dozen and all were sexed as female when they were chicks. I'm relatively certain that I've got a roo in the mix, and just wanted opinions on this one from folks with more experience. They're all the same age (around 15 weeks), and I've heard at least one of them crowing in the mornings. This one has the most roo-like physical features, but his/her personality doesn't line up with a roo at all. Thoughts?