Pirre Hummingbird

The Pirre hummingbird is 8.4 to 9.5 cm (3.3 to 3.7 in) long. Males weigh about 3.0 to 3.5 g (0.11 to 0.12 oz) and females 3.0 to 4.0 g (0.11 to 0.14 oz). Both sexes have a slightly decurved bill with a black maxilla and a black-tipped pink mandible. The male has a chestnut forehead and lores. Its crown, back, rump, and uppertail coverts are metallic green; the lower back and rump have a bronzy cast. Its central pair of tail feathers have bronze green bases and black tips and the rest are cinnamon buff with black tips. Its chin is cinnamon buff, the throat, breast, and belly shiny bluish green, and the undertail coverts white. Females have entirely green upperparts without the male's chestnut forehead. Their lores are chestnut and their underparts pale cinnamon buff.

The Pirre hummingbird is found on a few isolated ridges in Panama's eastern Darién Province and in adjacent Chocó Department in Colombia. It inhabits the understory of the edges and interior of humid montane forest at elevations between 600 and 1,650 m (2,000 and 5,400 ft).

The Pirre hummingbird forages for nectar from near the ground to the middle levels of the forest. Its diet has not been described in detail but it has been observed feeding at Cephalus shrubs. In addition to nectar it is assumed to also feed on small arthropods like other hummingbirds.