Piping Bellbird

Distinctive rounded-tailed rufous-brown bird of riverine habitats. Narrow buffy eyebrow and buffy streaks on cheeks and breast. Upperparts rufous-brown and underparts olive-brown; rich chestnut in chin, wings, rump, and tail. Rare, usually in pairs, found from understory to mid-level in riverine forest in very restricted range. Voice consists of repeated “CHEUP” notes, mostly in duet. Similar to Delta Amacuro Softtail (no range overlap), which is more streaked (including the head) and lacks buff eyebrow; Speckled Spinetail has a buffy (not orange) chin, paler head and breast with dark speckling, and a rufoud cap. Endemic to the Orinoco River and nearby tributaries in southwestern Venezuela and eastern Colombia.

A furtive dark brown warbler of rocky gorges, dry river valleys, and boulder-strewn outcrops in semi-arid terrain. At close range, the gray throat in combination with the rusty crown, rump, and variable breast band are diagnostic. It actively hops on rocks and low bushes, sometimes vanishing into a pile of boulders or vegetation only to reappear some distance away. It is scarce and unobtrusive unless vocalizing, when it perches prominently to sing a series or repeated phrase of long, often slurred clear whistles, sometimes mixed with dry rattling buzzy notes.

A distinctive long-tailed thrush from Sulawesi. Graduated tail often appears abraded. Upperparts dark, with slate-colored back and wings. Wings show a rufous flash. Underparts warm rufous-orange in color, uniform in adults but variably speckled below in young birds, particularly around the throat. A shy terrestrial thrush that forages on forest floor and trails, found very locally in montane areas. Told from Island and Sulawesi Thrushes by notably longer tail, lack of black brow, and absence of dark throat. Largely silent; song unknown, but high-pitched whistle has been reported.