I would happily share my suet with the 1 squirrel that visits if I could just defeat the starlings and grackles that clean the suet out within a hour. I've tried the upside down feeders and they just stand on the ground, jump and hook a toe on the wire and grab a mouth full. The "caged" feeders just barely slow them down...they stretch their necks and still get the suet.
I've given up