So I've been looking in most places you find on the internet for information on Pucas (pookhas, pwcas, etc.) and I know pretty much everything I need to know except for a few things.

Is there any sort of official mythology for how they are created or born? are there any goddesses they are associated with and are they a member of the upper or lower (I forget the proper terms) seelie court?

If you could help that would be so so nice.