Harpy

The harpy is a half-bird, half girl creature, and said to be a personification of stormy winds.

Information
They're generally depicted as birds with the head of a young girl, faces pale with hunger, and long claws. They were described as ugly by philosophers, although in recent years, they've become more appealing to the human eyes.

They work as wind "spirits", and they like to steal stuff such as foods while the victim is eating.

"Harpies carry off people to the underworld" is a false belief, at least for this harpy. Also, her wings are a bit too small for her body to fly, so she flys via a really old plane

Backstory
I'm too lazy to type something at the moment, so here's a description from Wikipedia as a place holder:

"The most celebrated story in which the Harpies play a part is that of King Phineus of Thrace was given the gift of prophecy by Zeus. Angry that Phineus gave away the god's secret plan, Zeus punished him by blinding him and putting him on an island with a buffet of food which he could never eat because the harpies always arrived to steal the food out of his hands before he could satisfy his hunger, and later writers add, that they either devoured the food themselves, or that they dirtied it by dropping upon it some stinking substance, so as to render it unfit to be eaten.

This continued until the arrival of Jason and the Argonauts. Phineus promised to instruct them respecting the course they had to take, if they would deliver him from the Harpies. The Boreads, sons of Boreas, the North Wind, who also could fly, succeeded in driving off the harpies. According to an ancient oracle, the Harpies were to perish by the hands of the Boreades, but the latter were to die if they could not overtake the Harpies. The latter fled, but one fell into the river Tigris, which was hence called Harpys, and the other reached the Echinades, and as she never returned, the islands were called Strophades. But being worn out with fatigue, she fell down simultaneously with her pursuer; and, as they promised no further to molest Phineus, the two Harpies were not deprived of their lives. According to others, the Boreades were on the point of killing the Harpies, when Iris or Hermes appeared and commanded the conquerors to set them free, promising that Phineus would not be bothered by the harpies again. "The dogs of great Zeus" then returned to their "cave in Minoan Crete". Other accounts said that both the Harpies as well as the Boreades died. Thankful for their help, Phineus told the Argonauts how to pass the Symplegades"