Watching the bird flying around Juanita Bay can bring out the aero guy in me. I was watching some ducks flying across the water and coming in to land. While the wings were working hard, it was also possible to see the feathers fluttering on the back of the duck just below the neck. Clearly, the flow is separating in this location when they are maxing out the lift and the feather get disturbed by the separation. Does anyone else but me care? Probably not so maybe no one is even reading at this point!