Silver Leghorn? He's got a silver duckwing pattern, but I'm not sure of breed. Sorry! As a side note, if he was your free rare breed from MM, you may want to compare him to the breeds they list as rare or unusual.
If that's what I think is a white earlobe, then I am in agreement with ve and greenfamilyfarms. My only other guess was Silver Penciled Plymouth Rock, but that would have to have a red earlobe. Gorgeous boy, by the way. Do you get to keep him?
