Now the pigeons have taken a new approach. They back just enough of their rear ends over the roof of the building so that they can shit directly on my balcony--anywhere on my balcony, doesn't matter. Judging by what I saw out there just now, two of three of them can gang up and all shit together in the same spot.
Perhaps I've forever ruined a prime nesting site with my netting and my plastic barbs and toxins, but they still rule the air overhead, and in fact are such skilled shitters that they can hit a folded lawnchair from 300 meters.
Keep your Beijing Olympics, I've got to beat the pigeons.