A kobold or minor demon from Bavarian and Austrian folklore. Bilwis was originally a benevolent trickster who would tangle the hair of children in their sleep. He could also cure illness if treated well. In time, Bilwis became a Bogeyman who robbed farmers of their crops, using the sickles on his feet and his pitchfork to enter fields and steal from them.
"A creature said to appear in German grain fields. It comes at night and damages crops. It is tall and emaciated with an ugly face. Scythes are tied to its toes, and by walking through fields with them on, it mows down the grain. Bilwis appears on Walpurgisnacht, or before sunrise on Pentecost."