Buster and Baxter are our newest peeps of unknown breed. They are supposed to be pullets but I am a little worried that Buster is a Roo. You see, Buster and Baxter live in the brooder with four female chicks (2 Rhode Island Reds and 2 Barred Rocks) 2-3 weeks their senior and Buster lives up to his/her name by bossing around the older chicks. Buster will not back down to the significantly larger chicks and they surprisingly put up with it. Anybody see this behavior before in a young chick (~2 weeks old) and does it necessarily mean that the chick is a roo?