On the subject of burying animals, I have a family story about this.
My mum lived in a village in the Midlands as a child (1940s) and had ponies/horses. When one died, her parents were going to arrange for the knacker to take it but she became hysterical and made her father promise not to let that happen.
Mum was put to bed and in the morning, the horse was gone, but the earth in the field was disturbed. Her parents told her that one of her father's friends had come to help and the two men had buried the horse that night.
As a child she believed them, but doesn't seem to have ever subsequently questioned this so told me in good faith that her horse was still buried there.
The field is now owned by the community - several people whose houses backed onto it, bought it after my gran died. And quite recently, on learning of my family connection with the village, a resident (someone living in my grans old cottage, an incomer so not there in the 1940s!) asked me about the story he'd heard, about a horse buried in the field!!
This is how legends are forged ---