Rooster wannabe

Someone was crowing in the coop today. I'm pretty sure it was the cream brabanter. Sometimes in a flock of all hens, one of them will start acting like a rooster - crowing, protecting the flock, and even mounting the other hens. If she gets to be too loud, or she's crowing at inappropriate hours, I'll need to cull or rehome her. I'm crossing my fingers that it doesn't come to that.