I Read That The F-117a Nighthawk Is Not Completely Invisible To Radar But That It Has The Radar Signature Of A Bird. The Painting Depicts The F-117a Flying At Sunset Superimposed Against Its Namesake Which Is Not A Hawk But A Variety Of Large Swallow Similar To The Whip-Poor-Will. It, Too, Flies At Night, Scooping Up Night Flying Insects.