WHY DO SQUIRRELS WHIP THEIR TAILS AROUND WHEN COMMUNICATING?

I notice it in my yard...is it like their GPS system..or is rain on the way or is this how they converse with each other?WHY DO SQUIRRELS WHIP THEIR TAILS AROUND WHEN COMMUNICATING?
Tail whipping is an anger posture , meant to ';stay away'; mostly to other squirrels.WHY DO SQUIRRELS WHIP THEIR TAILS AROUND WHEN COMMUNICATING?
Hello ,





Anything that moves will give Body Language .
Maybe its like how some humans use there hands when they talk. Who knows :)

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