As Above - So Below
A harpy is a malign humanoid creature with an avian lower body and a pair of wings. It subdued its prey with its ability to magically sing, inducing a trance in those that heard, drawing them closer, and then tormenting them.
Selfish, carnivorous beings, they use their siren’s song to lure creatures to their lairs and eat them. Or in the rare occasion, charm them in to servitude.
Sworn servants of the demon prince Pazzuzzu. They are to be avoided.