Bugul Noz

The Night Shepherd

In Breton belief, the Bugul Noz ("Night Shepherd") is a giant fae-like being who lives in the woodlands of Brecheliant.
He is the last of his kind. It is told that his appearance is so awful that even woodland animals avoid him, and he sometimes cries out to warn others nearby of his approach, so that he won't frighten them and that they will go home.
So hideous in fact, that it is said those who see him will die.

"in warning human beings, by his coming, that night is not made for lingering in the fields or on the roads, but for shutting oneself in behind closed doors and going to sleep. The shepherd of the shades would then he be.."