Build it Yourself
Instructables, a popular how-to website, has step-by-step instructions, including pictures, on how to put together your very own squirrel proof bird feeders for less than $10. By relying on lightweight cable ties as perches, this ingenious design makes it impossible for squirrels to steal your bird seed.
There are several species of ground squirrels and tree squirrels in North America that can create problems for bird enthusiasts. If you have squirrel problems, a squirrel-proof bird feeder may be your best solution. The Fox Squirrel and the Eastern and Western Gray Squirrels are species of tree squirrels that are most commonly involved with causing problems for home owners and bird watchers.