A monster or a king?

There was an enormous moth on the porch of the visitor center this morning. Unlike the graceful luna moth, this looked more like a muppet, covered with bright orange and yellow fluff! It did not move at all, so we kept pointing it out to visitors as they were coming and going.

I've seen some unusual moths this summer, but this one looked truly alien. When I put in a google search for "big orange moth", it was the first thing on the list. I was a little surprised to see the name - "Regal Moth", or "Royal Walnut Moth". I guess all that fuzz is actually a crown!

This is approximately life size.