I have a total of 10 chicks right now. One is 20 days old and 9 are 7 days old. The 20 day old and one of the 7 day olds keep squaring off just like adult roosters! Heads down, the side ways dance and then they go at each other with their feet, like they are trying to spur each other. Is this a sign that they are both roo's or is this just normal pecking order establishment behaviors?