They're only 2 1/2 weeks old so still too young to tell...I know, I know! But, just take a glance. We have 9 so chances are one or two could be a roo?! A couple of them act different from the others. One is super curious and generally more friendly and lets me pick it up easily. Another has big ole feet, hangs out by itself, occasionally acts "superior" and lays down different than the others. Those two are my suspected roos! Guess we'll wait and see!