The diet consists mostly of insects and other invertebrates but occasionally they feed on mistletoe berries (Loranthaceae sp.) (Stiles and Skutch 1989). Arthropods in the diet, as based on field observations, include caterpillars, other insects, and spiders (Stiles and Skutch 1989). Sillett (1994) examined the stomach contents of 10 individuals; the diet was dominated by Diptera and Hymenoptera and roach egg cases, but also included larvae, arachnids, "cryptic fliers"("nocturnal or weak-flying insects, e.g., Lepidoptera: moths, Psocoptera, and Neuroptera"), Heteroptera (Hemiptera and Homoptera), Dermaptera, Orthoptera, and Coleoptera.
No information is available on the quantitative analysis, the nutrition and energetics gained from food, metabolism and temperature regulation, or drinking, pellet-casting, and defecation.