Possible Duplicate:
How can I get rid of gophers in a non-lethal way?
Keeping mockingbirds off potted plants (ornamental peppers)
How can I prevent squirrels (or other small mammals) from eating my tomatoes?
How can I get rid of rabbits in my yard?
Is there any way to prevent vole lawn-destruction during snow-cover?
Can fake hawks be used to control mice,squirrels, and other rodents in a garden or backyard? Would an electronic hawk that made hawk-like noises fare any better?
If these "fake hawks" do not work, are there any humane alternatives which act as simple deterrents?