Violet Sabrewings are mostly nectarivorous, foraging at understory flowers and shrubs. Favored flowers include Heliconia and banana (Musa), and shrubs such as hot lips (Cephaelis) and Palicourea (Stiles and Skutch 1989, Osés 1999). Also occasionally visits flowering Inga and Malvaviscus (Feinsinger 1976). Visits, but apparently does not pollinate, flowering Erythrina (Neill 1987). They are frequent visitors of the nectar feeders and are aggressive in chasing other hummingbirds from the feeders (Henderson et al. 2010). They also consume arthropods, including spiders, Diptera, and Hymenoptera, primarily be gleaning from foliage and spiderwebs (Osés 1999).