The low-voltage lead to the perimeter of the balcony railing didn't work. Killed the geranium, is all. But the rust on my barbecue seems a tad crude for rock dove sensibilities, for they try to penetrate only the north edge of the balcony.
Now that I've strung 25' of 3' netting, however--held in place by s-hooks wired to the railing--maybe the rock doves will take their act to the balcony of suite 18.
Fat chance, which is how I see rock doves. A bunch of fat chance.
(Fat chants, if I was a little more adventurous.)