[1][2] Ebird describes this species as "Medium-sized brownish swiftlet with a weakly forked tail.

Typically encountered alone or in loose groups over various open habitats, often soaring high.

Fairly uniform brown plumage, lack of a pale rump, and size distinguish this species from most others in the area; Philippine Swiftlet is the most similar but is smaller, has a more square-tipped tail, and generally favors higher elevations (typically 700 meters and above).

Nest is round, composted of plant matter, moss and saliva.

Not much else is known about its breeding[4] It is found in a wide range of habitat including coastal areas, forest and agricultural lands and grassland.