"I got caught with a lot of material, and I worked it out," is how Mr. Simpson explains it, as if everyone would see a pile of metal and envision a whirligig.
Artist's famous whirligigs to be moved to new home →
"I'm not able to look after it now," Mr. Simpson said on a hot summer morning, sitting in a lawn chair in the shade of the field about 50 miles east of Raleigh. "I can't climb. If I could climb, I wouldn't let it go. My knees are wore out."