Got a couple of girls that sound like they're trying to get their grown-up voices. When they call out for their flockmates, it sounds sort of like a much deeper and somewhat raspy chirp at a much slower pace. They're a little over 8 weeks old. Does sound like the right timeframe for them to go through "puberty" and their voice to change?
Hens go broody when you don’t want them to… and won’t go broody when you do.