So some steps that you can take to prevent birds from eating all your apples, cherries, etc. are as follows:
- Reflective objects tend to cause birds to not want to be near the source of this strange light. Also noise is rather bothersome to birds. So one way to knock out two birds with one stone (ha, ha, sorry couldn't help myself) is to find some reflective bells that could be strung together so that not only are the bells ringing, but they are also clanging into each other for even more noise effect.
- Birds also don't like being doused with water when they are not expecting it, you might want to consider installing timed sprinklers near your tree so that if birds are resting there they get a sudden cold shower.
- If birds have an even easier food supply to get food from they won't want to bother with the fruit trees. Distract them with bird feeders placed away from the trees (but close enough that they will visit the feeder instead) do a little research on the types of birds that are "visiting" your fruit trees and find out which seeds for your feeder will attract them the most.