Maybe the tree just needs to get bigger ? I remember tons of birds and tons of cherries my growing up years at grandmas. Her trees were large, but we could use ladders and I climbed waaay up. We had plenty to make pies and put up for winter. My tree now is so old and huge, the only way I get any cherries are when the birds are kind enough to drop a few for me to pick up. I try to remember to always say thank you. As it stands, you have nothing to loose by experimenting with adding feeders. Currently I'm mostly winning in getting the squirrels to leave my finch feeders alone by feeding them separately each morning. They have me well trained. ;) This post was edited by plaidbird on Sun, May 11, 14 at 16:17

I own a yankee flipper as well and it has lasted many years - probably going on 5 now against the elements which is pretty respectable. It is a bit pricey but when you average it out based on how long it lasts and that it's so well built it is worth it. Here is the link to it on amazon. http://amzn.to/1UdB714 Also, there is a variant that doesn't use batteries called the yankee whipper. Instead of a spinning ring it has spring loaded perches that collapse when squirrels get to them. Probably not quite as entertaining as the flipper but still a good brand and very well built. http://amzn.to/1rvQiIc 

well i have 67 shag hick seeds that Im afraid to plant I planted a tray of bur oaks and the squirrels destroyed that tray I had a black garbage pail on wheels that i kept my bird seed including peanuts there was like a 5 inch hole chewed through the bottom of it. I dont think they like gingko seeds though lol - found one seed split in 2 sitting on a plug tray. Watch out for the grackles too there sneaky little bastards. I caught one a couple of times heading out of my shade set up where I have my beech seedlings he was in there diggin away havin lunch - stop touchin my nuts I screamed. then he flew away laughin at me cheers

I've had a slinky around my shepherd's hook for two summers now. It has Not stopped the squirrels. At first it did, but they figured out how to leap on putting their little paws in between the slinky rings and scale that shepherd's hook anyway and hang on it, stretch it out, and eat away. This year I found them laying across the rooftop of the bird feeder reaching down eating the cakes. So, I have found that sprinkling a little cayenne pepper on the cakes definitely works! So I put it across the roof too. But it goes away soon because the birds eats it off the surfaces. So I turned to putting olive oil on the post. That works beautifully! Of course, when it rains you have to reapply (we've had a lot lately) & that can be daunting. But Worth It because it is SO Satisfying & Funny to see them sliding down the pole and looking SHOCKED!