If you'd like to give the local birds a bit of variety in their diet, buy a bag of peanuts. There's no need to provide gourmet food here.
Peanuts are a treat for many wildlife species.
Offer them and you'll soon be treated to exceptional performances as birds and squirrels investigate and partake of this new food. Squirrel, jays, magpies, and many woodpeckers will make off with all the unshelled peanuts you can offer. Picture a diminutive chipmunk trying to stuff a three-nut unshelled goober into his cheek pouch. Jays hide the peanuts in strange places. Next spring, you can go on a treasure hunt, the course charted by the birds.