[IsTom]

In nature there's few things laying around that resonate particularly well.

[magneticnorth]

Hollow things are common, and of interest to many animals. If I thump a log and it makes a noise like it has a hollow space (low tones), then it may contain an animal nest or a beehive & honey, or it may be something I could use as a box or basket or shelter.

[maybewhenthesun]

Scratch a thin pointy branch across e rock -> sharp high noise.

Thump a round club/log against a rock -> dull bump noise

[IsTom]

Thump two round rocks together -> sharp noise

Thump pointy branch against a tree -> dull noise

And chickens aren't using tools.

[ASalazarMX]

Maybe animal sounds count? Warning sounds tend to be loud, sharp, and high-pitched; and when ignored, they might end with more material sharp things in your skin. I can't recall any animal with a soft warning sound.