What defensive tactic does the Southern Black Racer use when cornered to mimic a dangerous snake?

Answer

Vibrating its tail rapidly against leaf litter to create a buzzing sound.

When cornered, the snake defends itself by vibrating its tail against dry vegetation or leaf litter, creating a buzzing sound intended to imitate a rattlesnake warning.

What defensive tactic does the Southern Black Racer use when cornered to mimic a dangerous snake?
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