Taiwan Vivid Niltava

A small, active warbler of lowland and mid-elevation forest understory that is green above and gray below with a noticeable pale eyebrow. Similar to migratory warblers, especially Willow Warbler, but note Uganda Woodland-Warbler’s grayer underparts, paler throat, and yellowish vent. Song is a fast, jumbled mix of high-pitched notes.

Small songbird with bright yellowish upperparts and white “goggles.” Most subspecies have gray underparts; subspecies “unicus” of Sumbawa and Flores has a yellow belly. Compare with other white-eyes in various parts of their range; note present species combination of dark iris and yellow back. Inhabits a wide range of different wooded habitats across its range, including coastal scrub, mangroves, inland forests, and forest edge. Forages actively in small to medium-sized flocks, sometimes mixing with other species. Can be quite common on small islands. Twittering song is bright but unremarkable. Most frequently given call is a somewhat variable high-pitched, descending “djee.”

A robust, chocolate-backed forest skulker with clean-cut pale underparts washed gray, and a distinctive white throat and outer tail tips. Singles and pairs are shy and inconspicuous residents in the dense under-story of mid-altitude forest, between 700–1900m. May follow army-ant swarms, where it loses its fear of humans. Calls a loud downslurred quavering “tiiyuuu” and harsh chitter in alarm. Similar White-chested Alethe differs from Cholo by having gray (not brown) face and rufous tail lacking white.