Bornean Crestless Fireback

An elongated, metallic-green-black bird with red feet and a long, decurved, red-orange bill. Juveniles have dark bills but are often in the company of adults. It flies heavily, with the long floppy, white-tipped tail dangling behind. Pairs and groups of up to 14 birds are highly social, occupying savanna, woodland, riverine forest, and gardens, where they nest and roost in natural cavities. Clambers in trees, probing bark and crevices for insects and small vertebrates. They communicate using a strong cackling chatter that sounds maniacal. The almost identical Grant’s and Violet woodhoopoes (with which it sometimes hybridizes) differ from Green Woodhoopoe only by having a coppery-purple (not glossy greenish) metallic sheen.

A dull and poorly marked prinia with a strong bill and a long, graduated tail. Light brown above with faint dark streaking. Pale below, sometimes with some dark smudging along the sides of the breast. In some areas, breeding males become darker on the face and the bill becomes black. Found at low and moderate elevations in open dry forest, shrubby grasslands, and forest or agricultural edges. Can be retiring and difficult to see in dense vegetation. Sings two different song types: a dry rolling trill and a repeated two-syllabled “tulip.” Separated from most other prinias by its plainness and lack of contrasting head markings. Most similar to Himalayan Prinia, but there is little or no overlap in range, and Burmese Prinia is distinguished by having less streaking overall, especially along the sides of the breast.

A tiny swift with dark plumage except for the off-white underside from the lower breast down. Tail looks square, only sometimes showing a very marginal tail notch. Aerial and gregarious, gathering in flocks over a variety of habitats, both open and forested. Restricted to the western Lesser Sundas, where it only overlaps with one other similar species, White-nest Swiftlet. Tenggara Swiflet is smaller with a white underside, unlike that species.