Staving off unwanted animals from your yard need not involve traps or chemicals that could inflict permanent injuries on them. Chemicals may not only harm them, but you, your family, and plants as well. Electric fences are even more dangerous. Ordinary fences may work but if you are one of the many people who dislike fences, or you live in a neighborhood where fences are not allowed, these may not be an option.
Bird-X, Inc. manufactures animal deterrents that do not employ chemicals, traps, fences, or electrocution. Instead, these deterrents use sounds audible to animals but not to humans. Among them is the Bird-X YG Yard Guard Ultrasonic Animal Repeller.
This ultrasonic device is small, measuring only 16.5 x 11.5 x 9.5 cm, but it packs a lot of features and a lot of power. It has a built-in infrared motion sensor that can detect the slightest motion within a 4,000 square feet area of coverage. If such motion is detected, the sensor triggers the emission of powerful ultrasonic waves that scare animals such as deer, skunks, dogs, cats, rabbits, squirrels, or other animals.
The Yard Guard is constructed of ABS plastic making it weatherproof. It can be left out in your yard even in the rain. No assembly is required and installation is easy. It can be mounted on a wall, tree, or post. You also have the option of running your Yard Guard with four size C batteries or with AC power using the supplied 50-feet power cord.
This device is indeed an excellent alternative to chemicals, traps, and all kinds of fences. It is more environmentally friendly than either of them. It is also the most unobtrusive because, apart from the small plastic gadget, it is not even perceptible to humans.