This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Nobusuma (Japanese)
Nobusuma, despite appearing as flying squirrels, were original bats but tansformed into their current form upon becoming yokai and while primarily seed and fruit-eaters like common squirrels they have also developed unusual tastes for fire and blood.
When they do not need to feed, they simply swoop down and blow out lanterns and torches, flying back up into the night sky with a creepy cry that goes, “gaa gaa!” While nobusuma are born from long-lived bats, the transformation does not stop there. Once a nobusuma reaches a very old age, it transforms again, either into a yamachichi or a momonjii.