I actually don’t mind feeding squirrels from the seed feeders I have in the yard. I buy seed by the 20 pound bag and the birds eat the majority of it. But the three varieties of woodpeckers we have near us love to eat suet cakes. These are costly and a squirrel can eat her way through one in no time. Starlings, an unwelcome invasive bird, love suet too. They will swoop in at once and clean out a couple of suet cakes in an afternoon.
After looking for a solution, and not finding one, I finally stopped putting suet cakes out. The expense was not justifiable since I was merely feeding squirrels and starlings. Even if a small woodpecker was eating, when a group of starlings landed they drove him away.
Then reading about squirrel proof feeders(an oxymoron by the way) I ran across this suet feeder. (I get no kickbacks from the company and there is no link to it.) A weight sensitive cage holds two suet cakes which are accessible from the front and the back. When a squirrel lands on the cage, it drops down covering the suet.
What about starlings? One starling doesn’t weigh enough to close the cage. But starlings never let one eat alone. Soon enough more fly over and the cage drops. They then begin to fight among themselves and no one gets to the suet.
To my great delight the woodpeckers are back and enjoying their well deserved fatty treat.