姑獲鳥
When a woman dies just before, during, or shortly after childbirth, her spirit is often unable to pass on out of anxiety for her child. This troubled attachment manifests into a ghost known as an ubume. They appear on dark, rainy nights, and are often indistinguishable from a living woman carrying a child, crying for help. Ubume can appear in many forms: a woman carrying a baby, a pregnant woman, or a blood-soaked walking corpse carrying an underdeveloped fetus. Other times they just appear as horrific, bloody, naked pregnant women crying out desperately into the night for help.
These variations in appearance are due to the burial traditions of different regions, as well as the circumstances of death; in some areas, when a pregnant woman died she would be buried with the unborn fetus still inside of her; in other areas, the fetus would be cut out of her and placed in her arms during burial. Women who died after delivering stillborn babies were also buried in this way.
These tragic spirits wander the areas near where they died, seeking aid from the living which they cannot provide themselves. If the mother died after childbirth but her baby survives, an ubume will try to provide for the child in whatever way it can. She enters shops or homes to try to purchase food, clothes, or sweets for her still-living child. In place of money she pays with handfuls of dead leaves. These ghosts also often try to lead humans to the place where the baby is hidden so that it can be taken to its living relatives, or adopted by another person.
In cases where both mother and child died, an ubume can appear carrying the bundled corpse of her infant. When a human approaches, the ghost tries to deliver the bundle into the arms of the living. If the stranger accepts the bundle, the ghost vanishes, and the bundle grows heavier and heavier until the helpful stranger is crushed under its weight.
The name ubume is written with characters that imply a bird’s name. The literal translation of these characters is “child-snatching bird” and some theories connect this spirit with another yokai called the ubumetori. This yokai is an evil bird which flies through the sky searching for clothing that has been left on the clothesline overnight. When it finds some, it smears its poisonous blood on the clothing, and shortly afterward the owner of those clothes begins to develop shakes convulsions, possibly leading to death. They are also blamed for snatching babies and taking them away into the night sky. Whether this bird is another form of the ubume or a separate spirit with the same name is not known.