Sulawesi Drongo

Massive seabird of warm tropical oceans and coastlines. Overall black with extremely long, deeply forked tail and angular wings. Male completely black with inflatable red pouch on throat (not seen away from breeding colonies) and bluish eyering. In good light, black coloration can show purplish sheen. Adult female has white chest and golden bar on shoulder. Young birds have white head and breast. Often soars for long periods and flies with slow wingbeats. Steals food from other seabirds. Surprisingly acrobatic during aerial chases despite its large size. Limited range overlap with Great Frigatebird (mainly offshore western Mexico and in the Galapagos); identification is complicated by age and sex variation. Adult males are extremely similar; females and immatures best identified by exact pattern of white on head and breast, bill color, and eyering color.

A small, stocky, pale brown bird with a fairly heavy bill. Unlike other bushlarks, breast streaking is minimal and often only restricted to the sides of the breast, while the wings are not as rust-colored. The pale eyebrow is well marked and typically extends neatly down around the cheeks. There is subtle though considerable geographic variation over the huge range. The overall coloration can vary from dark gray-brown to rich rufous-brown to pale sandy, and the amount and clarity of streaking on the breast also varies. Found in dry, open plains, agricultural areas, open shrubland, and grassland. The song is varied and complex, and includes whistles, trills, buzzes, metallic notes, and sometimes imitations of other bird species. The song can be given from a perch or on the wing. Forages on the ground, where it can be hard to detect until very close; gives a loud chip as it flushes. Similar to Indian Bushlark, but Singing Bushlark has a white outermost tail feather, appears drabber overall, and looks chunkier. Larger-billed but smaller overall than Eurasian and Oriental Skylarks, and averages more darkly streaked on the back.

Unusual, very dark twinspot with small and faint “twin spots” on the belly. The red rump is conspicuous in flight. Found in grassy areas along forest edge and in lush cultivation. Not very vocal, but gives quiet twitters and a “tsip” call. Similar in size and overall coloration to Dusky Crimsonwing, but shows red on the flanks and none on the face.