I think I finally have a squirrel proof bird feeder, it’s been two weeks and no break ins so far. I’ve two families of cardinals, several smaller birds and one enormous wood pecker. The wood pecker is picky and keeps pitching seed on the ground till he finds the goodies he likes. I’ll try to get some pictures of that up as well next week. I’ve been trying to teach Fred and Kazoo to chase squirrels but they are more interested in lizards right now. Perhaps next year?
This feeder lasted about 18 months before the springs wore out. Not once in that 18 months did a squirrel get into it. I had it mounted on a pine tree.
Right now I have feeders mounted on copper piping we bought at HD. We attached an elbow and a foot long piece of copper pipe to the end of a ten foot piece of 1/2″ pipe. If I keep the pipes greased for about 3′ in the middle of the pipe. The squirrels can’t get into them. If the feeder is heavy the pipe does bend a little over time. You might want to try a large pipe or a stronger metal for yours.
I grease the middle rather than than the bottom. That way the squirrels jump up and get slimed. They really don’t like that. So even if the vasoline wears off it takes them a little while to figure it out.
National Wildlife says attaching a slinky to the top of your bird feeder pole and letting it hang down to the ground also keeps squirrels off the feeder. I haven’t tried it yet but it sounds promising.