He is a American game, as for the strain etc.. i can't say. but it's spangle and yellow legged.. i can't tell on the comb because of the sun but if it is straight comb. maybe a Kelso or yellow legged hatch, peacomb i would think more along the lines of a sweater (OR a yellow legged hatch since hatch's can come both.)
Being american gamefowl though it could be a cross of two to three strains, if you like him.. He is you're Yellow legged spangles. All that matters.
-Daniel
PS. Pretty by the way, bet he'll look even better when he matures.
ETA: In American Gamefowl there is not really a way to tell what is what unless you asked the person you got them from and they KNEW IT.. Gamefowl strains have been crossed with each other every which-a-way and then usually given the last name of the person who owned and bred them.. Kelsos-Walter Kelso, Sweater- Herman "Sweater" (Nickname) Mcginnis for example..