Some snuck up behind the Scarecrow, nibbling that section of the garden. The area in front was unmunched until we removed the Scarecrow. The plants were then eaten to the ground. A shortcoming of the Scarecrow is that it can't be used in freezing temperatures, when hungry deer often go after ornamental shrubs. Gardens in regions subject to freezes still need other methods to protect winter foliage.
Setup is simple.
You install a 9-volt battery, attach the Scarecrow to a garden hose, and push the stake into the ground. Each battery, they say, should activate the Scarecrow about 3,000 times. We had to replace our battery after about two months. You may want to replace your battery on a set schedule to make sure your Scarecrow doesn't quit when you need it. Because the Scarecrow's 'eye' has a viewing range of only 100 degrees, it's most effective in a garden with restricted access.