First, try to figure out what is attracting the birds. Birds usually don't hurts plants - the fruit is the primary target. Netting as a physical barrier is an excellent control method. Try distracting birds with tempting bird feeders and bird baths - keep them occupied and away from your home and veggie garden. Many orchardists hang several bars of scented soap from the trees.
Electric fences can also be effective.
Mountain lions, as population control, are a sure bet. Lastly, try growing plants that marauding deer hate. The problem of rodent infestation is largely preventable by maintaining clean, sanitary conditions and plugging holes in building walls and ducts. One final solution - get a cat.