Cornix is a character in Ovid

Ovid

Publius Ovidius Naso , known as Ovid in the English-speaking world, was a Roman poet who is best known as the author of the three major collections of erotic poetry: Heroides, Amores, and Ars Amatoria...

's Metamorphoses

Metamorphoses (poem)

Metamorphoses is a Latin narrative poem in fifteen books by the Roman poet Ovid describing the history of the world from its creation to the deification of Julius Caesar within a loose mythico-historical framework. Completed in AD 8, it is recognized as a masterpiece of Golden Age Latin literature...

.

There, she recounts how she was a princess, the daughter of Coroneus. One day as she was walking by the seashore, Neptune

Neptune (mythology)

Neptune was the god of water and the sea in Roman mythology and religion. He is analogous with, but not identical to, the Greek god Poseidon. In the Greek-influenced tradition, Neptune was the brother of Jupiter and Pluto, each of them presiding over one of the three realms of the universe,...

 saw her. When attempts to persuade her were unavailing, he attempted rape. She fled, crying out to men and gods, and while no man heard her, "the virgin goddess feels pity for a virgin": Minerva

Minerva

Minerva was the Roman goddess whom Romans from the 2nd century BC onwards equated with the Greek goddess Athena. She was the virgin goddess of poetry, medicine, wisdom, commerce, weaving, crafts, magic...

 transformed her into a crow

Crow

Crows form the genus Corvus in the family Corvidae. Ranging in size from the relatively small pigeon-size jackdaws to the Common Raven of the Holarctic region and Thick-billed Raven of the highlands of Ethiopia, the 40 or so members of this genus occur on all temperate continents and several...

. She also cites her resentment that her place as Minerva's servant is being taken over by Nyctimene transformed into the owl, where the transformation was punitive.

John Gower

John Gower

John Gower was an English poet, a contemporary of William Langland and a personal friend of Geoffrey Chaucer. He is remembered primarily for three major works, the Mirroir de l'Omme, Vox Clamantis, and Confessio Amantis, three long poems written in French, Latin, and English respectively, which...

 took up the tale for use in his Confessio Amantis

Confessio Amantis

Confessio Amantis is a 33,000-line Middle English poem by John Gower, which uses the confession made by an ageing lover to the chaplain of Venus as a frame story for a collection of shorter narrative poems. According to its prologue, it was composed at the request of Richard II...

, with particular emphasis on her delight in her escape:

With fetheres blake as eny cole

Out of hise armes in a throwe

Sche flih before his yhe a Crowe;

Which was to hire a more delit,

To kepe hire maidenhede whit

Under the wede of fethers blake,

In Perles whyte than forsake

That no lif mai restore ayein.