Harpy
Ἅρπυια
Bird-bodied monsters that snatch food away and foul whatever is left.
The name means "snatcher." They have a woman's face on a bird's body.
Every time the blind prophet Phineus tried to eat, they swooped down and wrecked his table — until the Argonauts rescued him.
When something vanished without a trace, the Greeks would say the Harpies had carried it off.
SourcesApollonius, Argonautica