We have 10-week-old Favaucana chicks. We know that some of them are roos. I caught this picture last night when I let the chicks out after the big girls went in. These 2 hunched down and ruffled their hackles and then both jumped in the air "attacking" with their feet. Is this typical roo behavior or could one of these still be a girl?
This is our first time raising chicks and have never had any roos before, so we are learning their behaviors as they grow up.
Any thoughts would be appreciated. Thanks.

Any thoughts would be appreciated. Thanks.