The Tepui Swift lives in the table-top mountains known as tepuis and catches small animals in the air by day.
The Brazilian adult account gives a length of about 16 cm, sooty-brown underparts, a copper-red throat band, and a long, forked tail.
It catches aerial invertebrates while flying by day. Cliffs, canyons, and waterfalls in the tepui region are among the habitats recorded for it.
On 7 September 2017, two adults and one nestling occupied a nest about 3 m high on a dry rock shelf near a cave entrance on Mount Roraima, Venezuela, at about 2,630 m.
The nest had a cup-shaped base of rootlets and fresh green and dry brown moss, with dry vegetation hanging from the front.
The nestling was dark blackish brown, with partly sheathed primaries and whitish edges on its primaries, their coverts and secondaries.
An extinction-risk assessment has not been added yet.