Many years ago, fairies, piskies, and goblins of all sorts lived all over Cornwall. Everyone knew it and were in awe of them. The young people appealed to the fairy folk for everything. To be helped in their work, to get love draughts and to know their fortunes.
As a child, I searched for piskies basking on a moor stone or listened for the sound of a bucca's pickaxe down the wells and mines. I was sure I caught glimpses and heard knocks even if I never actually caught one of them.
But today, sadly, most of this is regarded as superstitious nonsense.
But for the enlightened, the search goes on. To help in your search next time you're in Cornwall here's a guide to the difference between a piskey and a bucca.
The Piskey (Cornish pixie)
The Bucca (Cornish knocker)
They alerted miners to danger so they could leave unsafe tunnels. The miners, in return, would leave part of their pasty for them.
So there you are. I hope this is helpful. Good luck with your fairy folk hunting. 😀