Scratch a thin pointy branch across e rock -> sharp high noise.
Thump a round club/log against a rock -> dull bump noise
Thump two round rocks together -> sharp noise
Thump pointy branch against a tree -> dull noise
And chickens aren't using tools.
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Thump two round rocks together -> sharp noise
Thump pointy branch against a tree -> dull noise
And chickens aren't using tools.