Dang, I have that EXACT same rooster. I couldn't remember the breed/name that was pasted onto the bin at the Rural King, but it wasn't "Red Sex Linked." Definitely a rooster, mine is by far the biggest bird in my flock of 11 week-olds. I had thought of asking what he was, and I guess now I know. Maybe Rural King had a special that week: Out of my 9 "pullets," I have four roosters. Great.