I would say he is a nice mutt. He has several traits of the egg laying breeds (leghorns or minorcas): The long sweeping tail feathers, extra large comb with lots of points, long legs, and thinner across the back than the heavier breeds, not to mention the white earlobes.
he is not an astrolope they should have red ears not white or pink he look like a minorcas or andalution X juging by the larg comb and body size but not a astrolope