I have 12 girls... SO I THOUGHT!! Until this morning when I heard someone crowing in the hen house!! 7 of my chickens are 14 weeks old and 5 are 12 weeks old. The one I suspect is Maudie, she's 14 weeks old. She's a White Rock. I know they grow pretty quickly, but she developed a comb and wattles at 6 weeks old. Her tail looks pretty long and flowing... but I don't know... this is my first experience with chickens. She does act differently than the other girls. She does this wing spread thing with head down at me - not threatening, just warning sort of, but she/he is basically very sweet. She/he does seem to be the top hen, but she is not a bully at all. Anyone have any ideas? If she is a rooster, I will keep her/him. I have another one, I suspect too. I call her Charles Manson. She's a 12 week old RIR. She's always acted real weird... she's very anti-social and disruptive. If she is a rooster, she's going down the road!! un Thanks!!