Flame-rumped Tanager noisily forages for invertebrates, fruits, berries and seeds, at all levels (Restall et al. 2007). The adult diet is composed primarily of arthropods and fruits, which it pecks while perched on branches (Hilty 2011). Six out of eight stomachs of R. f. icteronotus examined contained only vegetable matter and the other two also included orthopterans and beetles (Coleoptera) (Isler and Isler 1987). Recorded as eating more than 22 species of fruit, including melastomes (which account for 30% of all fruit consumed) and especially Miconia berries, Cecropia (27%) and Ficus (19%) (Hilty 2011).