I have two 7 week old Welsummer pullets (?) that have started to have short fights. Hackles flared and feet out. Is this something normal as they are growing or is it a sign that they may actually be roosters. These fights are very short and then they just go back to scratching side by side as if nothing happened. If and what should I do about it. They both are developing a comb and one has wattles already.