Fixing this problem might seem like an easy task but it is harder than most people think. The squirrels are very motivated to reach the feeder and the free food. When you combine this with fantastic physical ability and the ability to learn they will prove to be a challenging foe.
The best chance you have of beating them is by using a well place squirrel proof bird feeder pole. The most effective of these use squirrel baffles. The most common ones use a bell or torpedo shaped baffle and are for feeders that are mounted directly on top of the post. Some of these are static while others can tip with the squirrel’s weight to make climbing the pole even harder.
Not all bird feeders, however, mount directly on top of the pole; they hang from the pole. The baffles for these mount directly over the feeder and are also bell shaped. These baffles are generally sold with the feeder and not the pole because the baffles are designed to work with specific feeders.
No squirrel proof bird feeder pole is going to work effectively if the feeder is placed in the wrong area. If it is placed too close to low branches of a tree or near a building; the squirrels will simply hop down to the feeder. That bypasses the baffle. Yard furniture and bird baths can also be leapt from.
Bird feed is not cheap so you want it to go to the birds you bought it for so a squirrel proof bird feeder pole is a good investment. If it is placed with forethought, your feathered friends will stay well fed and return time and time again.