Yokai Monsters: Spook Warfare
(Japan 1968) (Many Thanks to ZoneDaiatlas)
A vulture-like vampire arrives in ancient Japan and hides in the body of an important land-owner and starts to put the bite on his subjects.
The local ghosts are the only ones who know what is truly going on and try to oust the demon. Their efforts lead to a spectacular climax as the demon grows to giant proportions...