Update, 2 ribbons yesterday am, 10 sets of ribbons today. All grouped close together along the S shore. None on SW or SE shores. One feature unique to S shore of pond (outside of no trees so better sun penetration and warmer temps) is that the grade of the slope on the pond bottom is steeper there. I suspect perch can get from deeper water to shallows and back again more quickly on that side of the pond.
