I posted my owl face on a cd in another thread. I also suggest that you have sacrificial fig trees. Protect your prize trees with fences or netting tying brightly colored tassels to fences and netting to avoid animals getting trapped in fences and netting. Then take some older trees, unidentified trees or cuttings and leaving them fully exposed for the pest. The animals will always feed on exposed items over those that are protected.
Plastic predators sometimes work, and fox and coyote urine are good solutions. Finally if all else fails a live trap called a have a heart trap and then releasing the animals in an unpopulated area or open field. There are better ways and less dangerous ways of protecting crops rather than a kill method. Great post Soni.