Meal worms are a well-known food for bluebirds, but many other birds such as chickadees, wrens and woodpeckers love them, too. Don't buy live meal worms from a pet store because you'll pay more and they may not be healthy. Instead, go on line and order from a supplier who can deliver them in two days or less. Properly stored, meal worms can last for months. Your package should have complete instructions on storing your live worms. Meal worms are available dried and roasted, if you're squeamish about having the little critters crawling around. However, most people have been more successful with the live meal worms because birds are attracted to the movement.
Nectar is the main staple of hummingbirds and orioles will eat it as well. With nectar, simplest is best. Just add one part sugar to four parts boiling water and stir. Let it cool and serve! Do not add red food coloring, as it is unnecessary and potentially harmful. Avoid honey and artificial sweeteners, as these also can be harmful to hummingbirds. The main caveat with this simple nectar formula is to change it out every three or four days to prevent fermentation, which is deadly to hummingbirds.