In Greek mythology, Autonous (Ancient Greek: Αὐτόνοος (Auto - Nuss) means 'man with a mind of his own') was an owner of a large herd of horses which were pastured by his wife and children.
Autonous, stricken by panic, could not help his son, and neither could Anthus' servant, while Hippodamia was trying to drive the horses off but failed due to her physical weakness.
Zeus and Apollo, out of pity for the grieving family, transformed the members into birds.
Autonous became a stone curlew (Greek όκνος, because he "was not in time", όκνησε in Greek, to save Anthus), Hippodamia became a lark (the bird has a crest which symbolizes her courage) and Acanthis became a thistle finch; others became birds whose Greek names are the same as their personal names were when they were humans.
Erodius and Anthus' servant were transformed into black and white heron respectively; birds of these two species are never seen together.