I just KNEW he was a cockerel from day one but needed to be sure. He always stood up straighter, sounded alarmed at EVERYTHING especially if I dare to pick him up, even his "cheeps" sounded different. This got him the name "Chicken Little" because the sky is always falling
The running joke when we're outside cuddling the chicks (because all the rest will nothing short of abuse you with attention) is asking Chicken Little if he wants a hug.