Dohrn's Thrush-Babbler

Found at higher elevations than other members of its genus. Shy and uncommon denizen of forest undergrowth from 1,100–2,000 m. Chunky and short-tailed, dark brown above with rich rufous neck and breast. Blue eyering. Sexes alike. Could recall an antbird, but especially note pointier bill with a thicker base. Typically found in pairs or small family groups foraging on or near the ground. More easily heard than seen: listen for repeated sets of 2–3 eerie whistled notes stepping up in pitch, with little to no break between each set.

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.

A medium-sized swiftlet with a relatively long forked tail. Mostly brown with very slightly paler brown underparts and a more golden-brown rump and collar. Most common over rocky riverine valleys and humid forests. Similar to Atiu Swiftlet but is less contrastingly patterned, overall more uniformly brown, with a paler rump and a proportionally longer tail. Also extremely similar to Polynesian Swiftlet, but appears darker-faced and more obviously golden-collared. Vocally similar to Polynesian Swiftlet, with a voice consisting of insect-like buzzing and trilling.