A very old man with enormous wings is a criticism on religious practices on human shallowness

The old man appears to be nothing more than a frail human with wings, and so his status as an angel is endlessly debated. Father Gonzaga thinks that he cannot be an angel because he lacks dignity and splendor. Of course this begs the question of whether the angel lacks dignity intrinsically, or whether he lacks dignity because of the way he is treated - cooped up in a chicken cage. Perhaps it is the people who lack dignity, not the old man. The old man's other supernatural characteristic - his incredible patience in the face of his treatment - does not make much of an impression on the majority of the people, who are happy to exploit him until bored with him.