Lechuza are either shape-shifting witches or spirits in Hispanic folklore. Tales of Lechuza are quite popular in Mexico and Texas. Appearance: A human-sized bird with a woman's face Lore: Lechuza are women who have sold their souls to the devil in exchange for magical powers. At night, they transform into monsters with a bird's body and a woman's face, similar to depictions of harpies in Greek mythology. They then fly through the night in search of prey. In modern times, most reported run-ins with the witch-bird involve her swooping down at cars driving deserted roads at night.