We've always had a multitude of these rather disgusting and aggressive little birds in our big old overgrown garden, so when 10 years ago we moved to a new house site, with no garden atall, and we established a no-water garden based on Australian native plants and succulents, we thought they would no longer be a problem. We were OK for about 5 years but since then they have been creeping in, and we now have a regular flock. Terrorising and driving native birds away; pooing on the car in the garage; giving the veggie seedlings hell. Any ideas about getting rid of them - preferably permanently? So far we have tried poison (they won't touch it), traps (they won't go in), and firearms (they are super-elusive, all take flight at the first sign of human movement). Help!