Going to take a expert to tell me if this is cockerel or pullet?

[Kiki]

Its taken me years of studying chickens and learning all there different characteristics.To become a chicken expert.When it comes to sexing chicks I am a right a solid 50% of time.

Have you seen the threads here, I believe there is a current experiment on sexing eggs...let me see if I can find it for you.
BRB