You move your attention down to her larger, trailing secondaries.  Open hands slide across the slick feathers on the top of her wing until they reach the items of interest. You start with one feather at a time; you gently isolate the closest one to her torso and gently pinch it. Then you pull back gently on it, as if you were weakly trying to pluck it. One small slip up would mean you’d prematurely pull the feather, which she’d informed you was very painful. But if you pull with lightly enough, it just…might…