I read somewhere that a 3 row comb means boy. Is that true? I have a clutch of 6 Ameracauna chicks (9 weeks old now). 5 of them have a distinct 3 rowed comb. One has smalller comb that doesn't have 3 rows that I can separately identify. Does that mean I have 5 roosters and 1 pullet? (I hope not!) These Ameracauna are so hard to identify sex!