Hi all - one of my three RIR pullets - all around 9 months old - thinks she's a cockerel. Her comb and wattles have increased in size and color. She's stopped laying and is now crowing - or at least is attempting to. She's generally acting like a roo too. She's more aggressive, alerts the flock to predators, pecks at my feet when I'm in the coop and run, etc. We don't have a roo any more, and she's definitely trying to fill the void. Is there anything I can do to change her behavior and get her laying again? Tried searching for topics, but I'm not very good at searching. Any help would be appreciated very much. Thanks!