What do you think he/she could be?

[HappyClucker7]

White Jersey Giant, are you sure it's a roo? The tail looks pullet like to me.

That is 100% a cockerel. No pullet could get such a big, red comb at 8 weeks old.
It definitely looks like he has white earlobes. What breeds does McMurray have available with white earlobes like that?

 

[Pixburgh]

White Jersey Giant, are you sure it's a roo? The tail looks pullet like to me.

Not positive but that comb... very suspicious lol