This swiftlet occurs on Tahiti. The sexes look alike; the bird is dark with a grey rump. It catches insects in flight and nests colonially in wet, rocky, wooded valley canyons.
The sexes have similar plumage. The body is dark overall, with a small grey area on the rump.
It catches insects high in the air and nests colonially in wet, rocky, wooded canyons, with nests found up to 800 m elevation.
On Tahiti it was recorded in the Papeno’o, Punaru’u, Fautaua and Vahiria valleys in 1971–75, and in Taharu’u Valley in 1984.
On 19 September 2013, a colony of about 200 nests was recorded in a narrow gorge at 477 m elevation in Papehue Valley, Tahiti.
An extinction-risk assessment has not been added yet.