What gender is my Whiting?

[BLDietz]

We ordered Whiting True Blues from McMurray, born about mid-April. Supposedly all hens but this particular one has always been significantly bigger than the others. I've also seen it start to mount other older chickens in our flock. Either it's a very confident female or an oops roo! Hopefully these pictures are good enough.

 

[Leahs Coop]

Cockerel

 

[chrissynemetz]

That's a good looking cockerel

 

[sourland]

cockerel

 

[BLDietz]

Thanks all! I had a sneaking suspicion it was a cockerel.