just about everybody loves mealworms!! i have converted a small wooden bird
feeder so just the wrens can get in it to eat them (i just released 3 house wrens). i breed mealworms also so i have much to spare also.
suet for the woodpeckes and many other birds, they love it, audubon has a great suet feeder for pileated woodpeckers, it has a large fin on the bottom so they can have support for thier tail.
u can also put out chopped berries, and nail a few oranges to a tree and put out a dish of grape jelly for orioles .
don't forget the hummingbird feeders, if you have any with yellow on it, take a little acrylic paint and paint those parts red, red attracts the hummers, yellow attracts the yellow jackets and the venom from a yellow jacket can kill a hummer.
no need to buy any pre mixed nector for them, just melt 1 part sugar to 4 parts water, no food coloring unless you just want to color it red until they find the feeder, and disinfect and change the sugar water about once a week, it's okay if ants and other insects go in and drown it actually adds protien they need to the mixture.
oh and then i have the feeder for the sparrows, they tend to prefer the cheapest bird seed from the grocery store and they will leave the more expensive seed alone most of the time