What's That Bug? does not endorse extermination

I found this on my deck. Can you tell me what it is? I have attached a couple of pictures.

It is the caterpillar of a Tiger Swallowtail, Papilio glaucus. This is a large, graceful yellow and black striped butterfly. The caterpillar is fond of wild cherry and other trees. Those false eyes are meant to scare hungry birds into thinking the benign caterpillar is a ferocious snake.

What's That Bug? does not endorse extermination

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