This is not your everyday barnyard rooster. Far from it. This guy is the result of over 50 years of selective breeding.
So what makes his feathers so special? Barb density and stiffness, feather symatry, and stem shape, are just a few criteria that are used to judge whether or not his genes will find their way into future generations.
It's not surprising that it took over 50 years of intensive selection preasure to reach this level of perfection.