To Aziraphale as well, even if for different reasons. Not too many people ever bothered to make things clearer, but whether Aziraphale noticed or not is well up for debate.

"Oh, not- not those." It certainly isn't the strangest thing in seeing a god, or a supernatural creature. In fact, most of the ones he knows do have wings, including himself, or can don some at will. He doesn't let his own out often, though, not since humans began taking notice of that sort of thing.

"Well, never mind. How have you been finding the train?"