Wild fruits can be dried and saved to use later when food is more scarce. When offering the fruit, put it in the same place every time. It may take a while for the birds to discover it. Be patient, once they find it, they'll return again and again. One of the most popular fruits are apples.
Apples can attract bluebirds, cardinals, catbirds, flickers, woodpeckers, and several other birds.
Bananas are especially good for attracting warblers, also tanagers, orioles, catbirds, and thrushes. It is best if the bananas are ripe. Oranges are very tempting to orioles. Berries of all kinds can bring in common feeder birds plus thrushes, towhees, tanagers, bluebirds, and grouse. Hummingbirds like the juice from fruits and the flies fruit attracts.