I just purchased my first chicks last night! I got 6 chicks: 2 buff orpingtons, 2 black australorps, 1 white leghorn, and 1 ameraucana. I'm nervous about the leghorn because I have heard that they can be very skittish and mean to the other chickens. What are your opinions on the leghorns and the other breeds I have? Also, I am not sure how often I should clean out the brooder. I'm excited to start raising chicks!