For the past few years, I have tied old shiny computer discs to the fruiting trees - apricot, plum, apple - along with partially deflated mylar baloons. The balloons dance and move with the slightest breeze, and the discs spin and emit flashing lights if the sun can shine on them. This has been quite successful, although my greatest predator this year has been squirrels, both ground and gray types.

We managed, however, to harvest most of our fruit, except for the almonds, which the squirrels eat, even though the seed kernels weren't ripened

I am hoping that the ground burrowing critters will not find the young tree roots.

Good luck.

Bejay

I also have had good results with the CDs. Only put them up right as the fruit is about to get tasty. Too early and they acclimate, too late and they are too hungry and will ignore them.

Scott

in addition to mylar shiny stuff I've added aluminum pan lids from party supply store - their retangular, extremely cheap, like 50 cents each, and blow in the wind easy. i put several on a pole so they hit each other. Shiny and random sound but not enough to trouble neighbors. Managed to keep 90% of my blueberries this year. Also did the mylar balloons-about 1.50 ea and blow in the wind even if deflated.