I have 5 SS Pullets and I am going to go with the rest and say yours is a cockerel. Here is one of my girls at 16 weeks for comparison. Yours has a much bigger and redder comb.
Thanks everyone. Why is it I can look at someone else's bird and be pretty sure of the sex, but when it comes to my own it's like I'm in denial? "sigh" Well it looks like we're going for a ride this weekend.