Vampires were most likely to take the form of owls.
Vampires would often marry mortal women
Vampires are a type of fairy.
With cghub no longer up I’m going through and reposting with updated links. This work is by http://jairworks.blogspot.com/
As humanity encroached on nature the fairies didn’t just vanish, instead they began to adapt to civilization. There are thousands of fairy tales and bits of lore from around the world about wilderness spirits who became the spirits of fields, gardens, yards, and even people’s homes.
In Croatia there is another forest fairy known as a Vedi, which are as tall as the trees, who live in small villages or cities within the forest. They act as mischievously as anyone would expect a forest spirit to act. Worse they even enjoy suffering such that they will kidnap and torture people, releasing their victims right before they die from the pain and suffering. Yet the Vedi who live near civilization have started to adopt human families, protecting them against natural disasters. Yet even these Vedi are still somewhat feral. For they still harm and cause mischief for the neighbors of those they’ve adopted.
“This may be illustrated by the expression: “Dear God, let our vedi help us and don’t let their vedi harm us”. (Conrad, 2001)
Domesticated fairies often lived along side humans. The Scrat of Germany, for example, lived in the trees near a persons house, protecting them from evil spirits. Brownie type fairies in Britain were once fairies of groves of trees or pools of water who had moved into people’s homes. This meant that even after people left the wilderness maintaining a relationship with the spirit world was important in lore.