I recently bought this book: Wilder Mann: The Image of the Savage.  It is a wonderful book documenting seasonal  rituals, festivals & ceremonies of western Europe. Unfortunately, of the 270+ pages, the descriptions of what is taking place are limited to about 20 pages at the back. Each event only receives about a paragraph. Still, it is worth a look and the time it would take to read the brief text. No, there are no rituals involving caged foxes, but the symbology & significance of the characters involved  influenced me while making this.
I’m sure it will again.