Visit our sister site, BirdSong Nature Shop, for great prices on thousands of backyard birding items:
An electronic bird feeder squirrel baffle that can be used with all hanging feeders up to 10 lbs. It does not require a special feeder - you can use the feeder you already have. When squirrels activate the baffle, it begins to spin, making the squirrel dizzy. Over time, the squirrels can then become conditioned to avoid the feeder. It does not harm birds or squirrels and is durable, made of weather-resistant PVC. No assembly required. Operates on three standard D-size batteries (batteries not included).