Tepui Swift

The tepui swift is one of the smaller members of genus Streptoprocne. It is 14 to 16 cm (5.5 to 6.3 in) long and weighs about 20 to 24 g (0.71 to 0.85 oz). It has a long deeply notched tail and long broad wings. Adult males' most obvious feature is the wide orange-chestnut collar that encircles the neck and includes the upper breast, chin, throat, and most of the face. The rest of its plumage is sooty black, at times with a few white feathers on the breast below the collar. Adult females are similar to males though some have a paler breast with brown mixed in. Immatures resemble adults with the addition of pale gray edges to the underparts' feathers.

The tepui swift is found in the tepui area where southeastern Venezuela, western Guyana, and far northwestern Brazil meet. One individual has been documented in far northern Venezuela; it is not known if it was a vagrant or a migrant. The species is found in humid montane and lowland forests, montane grasslands, and around cliffs. In elevation it mostly ranges between 200 and 2,200 m (660 and 7,200 ft) but has occurred as high as 2,630 m (8,600 ft).

Like all swifts, the tepui is an aerial insectivore, but little is known about the details of its diet. It often feeds in flocks of 10 to 20 or more that sometimes include white-collared swifts (Streptoprocne zonaris).