If you need to hang bird feeders in your tree, you want to keep them away from the main dome and equip them with the confused or simply use squirrel-proof bird feeder designed with the upper dome-type.
Another popular style feeders squirrel-proof bird feeder cage. Caged feeders of the internal feeders containing seeds surrounded by a cage, which prevents the wire squirrels - to receive the seed. They just put the food available for hungry squirrels. bird feeder poles squirrel proof.