Sumatran Bulbul

A sleek green bird of forests, forest edges, and palm savannahs. Groups of ten to twenty birds often rapidly disappear upon landing, their plumage melting into the similarly colored foliage. Easily distinguished from other species in its range by its color, slim build, and long pointed tail. In overflight appears green with red on forewing. Flight call is shrill and squeaky; notes of each bird often given singly or in couplets. When perched, calls are typically quiet with a murmuring quality.

Magnificent dark antshrike of mature upland rainforest. Has a large head with a crest and strongly hooked bill. Males are slaty gray with fine black barring; females are tawny orange with fine black barring. Larger than most other antshrikes and antbirds in its range. Forages singly or in pairs in open understory, and seems to be somewhat rare throughout its range. Its song is a gradually rising series of low whistles given at a steady pace.

Elusive brown skulker with a pale throat and gray face. Dark edges to its back and crown feathers give it a scaly-looking quality. Forages on ground and in undergrowth, almost always under heavy cover and rarely emerging into the open. Extremely similar in appearance to Pale-throated, Chin Hills, and Long-tailed wren-babblers, but no range overlap. Song is a long ascending trill with a stuttering, bubbly quality to it.