Green Warbler

Cryptic, seldom-seen nightbird of lowland and foothill forests. Unlike other small frogmouths, sexes are alike. Light morph is bright rufous with scattered white dots on the wings and mottled-white underparts. Dark morph is brown but with the same general patterning. Compare with Sunda Frogmouth: male Sunda is much more heavily marked with white above and has patchier markings on the underparts, while female Sunda has a prominent white band across the chest. Sumatran and Bornean Frogmouths inhabit higher elevations. Song is a loud “weeow-wah.” Calls include “weeow” and a rapid series of “wuk” notes that resembles a thrush’s alarm call.

Brown cuckoo-dove, endemic to Enggano Island, off Sumatra’s southwest coast. Gingery-brown, with distinctively blotchy, “scaled”-looking chest and upperparts. Unique in its limited range, where it is the only cuckoo-dove. Inhabits forested and wooded areas throughout the island. Like other closely related cuckoo-doves, forages predominantly in the middle and lower levels of forest. Often keeps to dense foliage, where it can be difficult to see; listen for its song, a mellow “doo-doo-dowOOH.”

Small stout frogmouth with a face full of wispy whiskers. Males are dark brown overall; females are bright rufous. Restricted to Borneo’s central and southern mountain ranges, where it inhabits foothill and lower montane forest. Similarly-sized Sunda Frogmouth mostly found in lowland forest. Blyth’s Frogmouth is proportionally longer-tailed, with stronger white markings on the wings and underparts. Vocalizations vary and are poorly understood; frequently gives a mournful descending whistle and a fluid, rippling, downslurred trill.