Harpies in Wikipedia
In Greek mythology, a harpy ("snatcher", from Latin: harpeia,
originating in Greek: ἅρπυια, harpūia) was one of the winged
spirits best known for constantly stealing all food from
Phineas. The literal meaning of the word seems to be "that
which snatches" as it comes from the ancient Greek word
harpazein (ἁρπάζειν), which means "to snatch".
A harpy was the mother by the West Wind Zephyros of the horses
of Achilles. In this context Jane Ellen Harrison adduced
the notion in Virgil's Georgics (iii.274) that mares became
gravid by the wind alone, marvelous to say.
Hesiod calls them two "lovely-haired" creatures, perhaps
euphemistically. Harpies as ugly winged bird-women, e.g. in
Aeschylus' The Eumenides (line 50) are a late development, due
to a confusion with the Sirens. Roman and Byzantine writers
detailed their ugliness....