The Alan are deformed spirits from the folklore of the Tinguian tribe of the Philippines.
They have wings and can fly, and their fingers and toes point backwards.
[1] The Alan are said to take drops of menstrual blood, miscarried fetuses, afterbirth, or other reproductive waste and transform them into human children, whom they then raise as their own.
They live near springs in extremely fine houses, made of gold and other valuables.
You can help Wikipedia by expanding it.This article about a legendary creature is a stub.