The Nun's Priest's Tale is one of Chaucer's most brilliant tales, and it functions on several levels. The tale is an outstanding example of the literary style known as a bestiary (or a beast fable) in which animals behave like human beings. Consequently, this type of fable is often an insult to man or a commentary on man's foibles. To suggest that animals behave like humans is to suggest that humans often behave like animals.
This tale is told using the technique of the mock-heroic, which takes a trivial event and elevates it into something of great universal import. Alexander Pope's poem The Rape of the Lock is an excellent example a mock-heroic composition; it treats a trivial event (the theft of a lock of hair, in this case) as if it were sublime. Thus when Don Russel, the fox, runs off with Chaunticleer in his jaws, the chase that ensues involves every creature on the premises, and the entire scene is narrated in the elevated language found in the great epics where such language was used to enhance the splendid deeds of epic heroes. Chaucer uses elevated language to describe a fox catching a rooster in a barnyard — a far cry from the classic epics. The chase itself reminds one of Achilles' chasing Hector around the battlements in the Iliad. To compare the plight of Chaunticleer to that of Homer's Hector and to suggest that the chase of the fox is an epic chase similar to classical epics indicates the comic absurdity of the situation.
