I have 24 chicks in a long, extended "dog pen" style run in my upstairs bedroom, and one of the 24 has developed a habit of "charging" me when I open the gate. All the others run away, screaming at the top of their lungs, but one of my RIRs pecks at my hand and fingernails, and leaps up trying to spur me, and then jumps onto my hands any time I reach in to change the feeder or watering can. I think this must be a rooster, but maybe it's just a very ballsy hen? I ordered all pullets from the Hatchery, but they only guarantee a 90% accuracy rate, so I did expect to get a rooster or two. Anybody ever been able to spot a rooster this young, simply based on this type of behavior?