About Coeligena bonapartei (Boissonneau, 1840)
Coeligena bonapartei, commonly known as the golden-bellied starfrontlet, has an overall length of approximately 10.9 cm (4.3 in), which includes a 3.0 cm (1.2 in) long bill. Males average 6.6 g (0.23 oz) in weight, while females average 6.4 g (0.23 oz). Both sexes have a distinct white spot behind the eye. Males have a blackish crown with a glittering green forehead. Their upper back is a shining dark green, transitioning through greenish copper to a golden orange rump. The throat and breast are glittering green, and the throat bears a small violet patch. The remaining underparts are variable in color, ranging from glittering copper to reddish gold. Their slightly forked tail is golden bronzy green. Females have a plain green forehead; the rest of their upperparts match the pattern of the male's but are duller in tone. The female's throat is plain buff with green spots along its sides, and the breast is mottled with buff and green. The rest of the female's underparts are mostly cinnamon, with a reddish gold belly and a coppery gold vent area. Female tail feathers are bronze, and sometimes have buff tips. The golden-bellied starfrontlet is distributed only in the Eastern Andes of Colombia, between Boyacá Department and the Metropolitan Area of Bogotá. The species primarily lives in the interior and edges of humid montane forest, and it also occurs in dwarf forest and more open landscapes with scattered vegetation. It occurs at elevations ranging from 1,400 to 3,200 m (4,600 to 10,500 ft).