Chestnut-tailed Antbird

A unique Javan endemic, this species’ namesake rufous tail sets it apart from the other two fantails on the island. Also note white throat and “angry” eyebrows. An active inhabitant of foothill and montane forests, often moving with mixed flocks in tangled vegetation in the lower nad middle levels of forest. Song is a comical squeaky series of up-and-down notes. Call is a dry “chrit.”

A unique dark swallow of lowland rainforest, less commonly seen at forest edge and in montane foothills. The only swallow that can be found flying bat-like under the canopy in closed forest. Overall a dark sooty brown, with some birds, especially adult males, having brighter rufous throats. Small and compact with a short, mostly squared tail. Often found nesting under boulders, in caves, or in similar locations in the rainforest. Very similar to Square-tailed Sawwing, and some individuals are best left unidentified. Note Forest Swallow’s unique, bat-like flight, and in good light, its more brownish plumage and sometimes more rufous throat. Despite its visual similarity to sawwings, this species is most closely related to house-martins. Voice is a short, buzzy call note.

Small plump leaf warbler. A “Pallas’s-type” leaf warbler: stout, with a pale rump, crown stripe, and prominent brow stripes. Olive-yellow above with a faint gray wash on the nape. Chinese is distinguished from Pallas’s by its paler, more faded-looking brow and crown stripes, less yellow suffusion all over the body, less compact appearance, and less obvious or absent upper wingbar. Extremely similar Gansu Leaf Warbler and Lemon-rumped Warbler can be difficult to separate; note Chinese’s slightly more elongated and less rounded appearance, a lack of a distinct hook under the end of the brow stripe, less contrasting and more yellowish head patterning, and paler yellowish secondaries. Forages actively, often hovering and hopping about at mid-level. Breeds in montane broadleaved deciduous or mixed forest; moves to lower elevations in winter. On average, found at lower altitudes than Lemon-rumped and Gansu. Lengthy song is unique and bizarre, with a twanging, grating quality: “btrichi-btrichi-btrichi.” Call is an explosive “wip!”, often repeated in medium-length series on the breeding grounds.