That said, I wonder if he's not a white Jersey giant (white giant, etc) - they have yellow skin and single combs. Not sure if those are an APA recognized breed.
Sorry I can't help with the game birds.
Sorry I can't help with the game birds.
he holds his tail too erect for either, although he probably is a white rock his shape isn't very accurate. that is not to say he isn't a pretty bird.