I've put out two feeders, of which one has suet cakes attached to it for the woodpeckers that occasionally came to the feeders last winter.
So what do you do when a woodpecker shows up and disregards those lovely suet cakes (apples and walnuts!) and goes to the finch feeder? Well, you take pictures and try not to laugh (even if you do just a little) at the birdy contortions on the feeder.
A red-bellied woodpecker: