Diamantina Sabrewing

The Diamantina sabrewing is a large hummingbird, about 13.4 cm (5.3 in) long. Males weigh about 8.5 g (0.30 oz) and females 8.0 g (0.28 oz). The sexes have almost identical plumage including a white spot behind the eye. Their bill is long and slightly decurved; the maxilla is black and the mandible whitish with a brownish tip. Male's upperparts are dark grass green with a darker crown and their underparts dark gray. Their tail's central two pairs of feathers are metallic bronze-green. The other three pairs have bright bronze-green bases that grades through dark olive gray to a wide white tip. The female differs only by being a slightly duller green.

The Diamantina sabrewing is found only in the Espinhaço Range of southeastern Brazil's Minas Gerais state. It inhabits forested streams and ravines in campos rupestre, a high elevation, dry, fire-prone biome between 1,000 and 2,000 m (3,300 and 6,600 ft). The type locality is Córrego das Pedras in the municipality of Diamantina.

The Diamantina sabrewing's foraging strategy and diet are not known but are assumed to be similar to those of its former "parent" the grey-breasted sabrewing.