That commercial was filmed at the Tan Hill Inn, the highest (as in, most altitudious) boozer in England. They had that very feather framed on the wall, until somebody stole said feather. They are incredibly cross about it -- one might say, spitting feathers -- and are, I believe, offering a reward for its return.
Edward Walker Moult, known for his jolly demeanour,
feathery adverts, and genuinely tragic demise