What is the safest protocol if you observe a snake mimicking a rattlesnake in an area where ranges overlap?

Answer

Back away slowly and allow it to depart.

Due to the high risk of misidentification caused by mimicry, the safest procedure, regardless of certainty, is to withdraw slowly and let the snake leave undisturbed.

What is the safest protocol if you observe a snake mimicking a rattlesnake in an area where ranges overlap?
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