What defensive behavior of the rat snake mimics the sound of a rattlesnake?

Answer

Rapidly shaking their tail against leaves or debris.

When threatened, a common defensive mechanism employed by rat snakes is tail vibration. They shake their tail against debris to create a rattling sound, which serves as a bluff to deter potential predators.

What defensive behavior of the rat snake mimics the sound of a rattlesnake?
animalPest Controlyardsnakerat snake