Kathy, those are some great looking boys. I see one too Columbian in there, but the rest look really good. As far as I know, what Janet means is that the head is broad and rather flat on top, not narrow. There is just a look I can't really put into words that seems "right" when I see it. Maybe it has something to do with the eyes, the earlobes, the beak, the comb... hard to say.
The second and fourth pics from the bottom show to much black on the beaks and one of those is the Columbian marked boy as well. That first boy is a TANK!
The second and fourth pics from the bottom show to much black on the beaks and one of those is the Columbian marked boy as well. That first boy is a TANK!