Jack Bobble Head Owl deters birds and rodents safely from gardens and outdoor areas. Cleverly activated by the slightest wind gusts, the owl's head will bobble, giving 'life' to its reflective eyes. Durable and weatherproof , the owl is quick and easy to install. No batteries are required. Many pest animals are scared of this natural predator by instinct. They can be positioned in trees or on a roof for best effect. With a solid and durable construction the owl is weather resistant but also lightweight and easy to move. Protect your garden, fruit trees and flowers from birds and many other garden pests. This inexpensive and effective deterrent looks natural and decorative as well.