- For as long as people have been feeding birds, they've been unintentionally feeding squirrels. Squirrels love the same seed that fills your bird feeder, and they've got the size, strength and intelligence to take over an unprotected bird feeder. If squirrels are a problem in your backyard, these squirrel proof bird feeders will help keep the troublemakers away. Squirrel proof feeders have become increasingly sophisticated (and increasingly entertaining) in the quest to keep those rascals out of the seed. One of the industry's most popular feeder, the Yankee Flipper Squirrel Proof bird feeder, uses the squirrel's weight to trigger a battery-powered motor to flip the feeder's perch and send the thieving squirrel flying. Weight-triggered squirrel proof bird feeders use the heavier weight of a squirrel to trigger a spring that closes off access to the seed. When the squirrel departs, the feeder's ports open up again. Baffle and feeder combos try to keep squirrels away by using large domes or tubes to thwart the squirrel--the squirrel can't jump over it and can't climb around it. Caged feeders try to keep squirrels out by surrounding a tubular feeder with a wire cage that has openings too small for squirrels but just-right for birds. No squirrel proof bird feeder is 100% guaranteed to keep every squirrel away--we've seen some amazingly determined squirrels. Our number one choice for your best chance of fixing your squirrel problem is the line of "Brome Direct Bird Care" feeders. The Brome Bird Care Squirrel Buster Plus and the Brome Direct Squirrel Buster Classic are all-time favorites. We have chosen the most consistently reliable to give you the best chance to reclaim your bird feeders for their rightful owners.