The wing is mostly a flat surface. It will produce a strong "specular" reflection when the angle between the viewer, the wing, and the light source is appropriate. What is happening is that the optimum reflection angle is attained just before impact.
The wing is mostly a flat surface. It will produce a strong "specular" reflection when the angle between the viewer, the wing, and the light source is appropriate. What is happening is that the optimum reflection angle is attained just before impact.