You may also adopt few ways of saving your bird feeders from the squirrels. Once such way may be placing the feeder at a place where squirrels cannot reach. Also maintaining perfect cleanliness is also necessary as this will help the birds to get attracted and at the same time, it will be safe from the squirrels as they will not get attracted to it. There are a lot of good companies that produces the squirrel proof bird feeders but it is very essential that you buy only the best and durable bird feeders.
Duncraft is one such company which is a complete solution if you love to set the bird feeders squirrel proof and squirrel baffle on your terrace just to see the beautiful squirrel bird feeders through your feeder. But the squirrels may be a big concern for you.