What is "gerana"

Gerana was a queen of the Pygmy folk in Greek mythology. She boasted to be more beautiful than the goddess Hera and was transformed by the angry goddess into a crane (Greek γέρανος geranos). The bird descendants of Gerana waged an eternal war on the Pygmies during their winter migration to the shores of the river Oceanus.

Gerana was otherwise known as Oenoe.