Fruit Various fruits can prove quite attractive to many species of birds. Oranges cut in half will often attract orioles which will sip the juice and eat the flesh of the orange. Grapes and raisins (no preservatives, please) are a favorite of many fruit-eating birds. Mockingbirds, catbirds, bluebirds, robins, and waxwings are all species that are likely to feed upon fruit. Many species will also be attracted to the dried seeds of fruits like pumpkins or apples. Be sure to dispose of any fruit that becomes moldy because some molds create toxins that are harmful to birds.