Ідентифікація
A small, mostly brownish swiftlet. Most obvious feature is a pale gray throat contrasting with a darker brownish belly. Commonly found over a variety of natural and non-natural habitats. Similar to Polynesian Swiftlet, but proportionately shorter-tailed with much more contrasting plumage, including paler underparts and a darker rump. Voice commonly consists of weak chirping and twittering.