Confused over a 3-month old bird... from their behavior they act much more like my leghorn hens but they've taken to "crowing" at various times of the day. It sounds more like a squeaky toy than a roo. We have a black sex link that's definitely a roo but extraordinarily timid and we haven't heard a peep out of him. Apart from some raised hackles nobody fights.
The camera makes them look lighter in color than they are and their feathers are pretty rounded unlike the sex link's. He tends to hold his in a droopy arc whereas the questionable barred rock's are in a higher poof. Is she a masculine girl or a girly roo?