Small, slender-billed Galápagos finch. Best identified by its thin bill, brownish-gray plumage, and the island on which it is seen. Male sometimes has a faint, orange wash on throat and face. Inhabits the central and western islands of Santa Cruz, Baltra, Santiago, Rábida, Pinzón, Isabela, and Fernandina. Not found together with the very similar Gray Warbler-Finch. Might be mistaken for a young female Yellow Warbler (some of which show only a trace of yellow), but note more finch-like bill and shorter tail. Lives in a variety of wooded habitats, but most common in humid highland forest.