The bottom picture looks to me like the end of a tail. Some grizzled fur in there too. I'm leaning toward grey fox, coyote or raccoon. Raccoon seems to consistently have the banding. Using the leaves for scale, it's not a big piece of the tail. Not 100% sure it's a tail, but if it is, that's what I would go by.
Gray fox tails:
Coyote tail (will be quite variable):
Raccoon tail:
Gray fox tails:
Coyote tail (will be quite variable):
Raccoon tail:
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