We have 6 baby chicks that are about 4-5 weeks old. They are all starting to get most of their feathers. One of them is already growing the comb/wattle, she is a gray speckled feather footed (sorry I'm bad with breed names) and seems to be a major bully. She started chest bumping and fly attacking the others about a week ago (which is adorable) but it's escalated to grabbing our 2 black girls by the neck feathers until they scream and run away. She also takes any of the girls choices to fly as an invitation to chase them down and fly at them in return. The stacked firewood is her preferred place to 'roost' through most of the day, like she's watching over the other girls and she often kicks them off her stick if they try and join her. They are allowed outside in an enclosed run to explore all afternoon so boredom isn't the issue (I've also made the brooder into a playground of sorts with a roost stick, hanging CD's, and containers to climb on). All the girls seem to live in harmony except this one...I'm not sure but am thinking it's a possibility that she could actually be a he? Is there a way to know prior to the crowing? I'm not sure how to deal with it if she's actually just a bully...they are so young! This is my first time raising them from babes, we only have one full grown girl left (Orpington) who is senior and we want to give her some company and get some egg laying girls back in the flock.