The black-throated mango (Anthracothorax nigricollis) is a species in subfamily Polytminae of the hummingbird family Trochilidae. It is found in Panama, in every mainland South American country except Chile, and on Trinidad and Tobago. Taxonomy and systematics The black-throated mango, like many hummingbirds, bounced among several genera before settling in its present Anthracothorax. As of early 2023, worldwide taxonomic systems assign two subspecies to it, the nominate A. n. nigricollis (Vieillot, 1817) and A. n. iridescens (Gould, 1861). Subspecies A. n. iridescens had previously been assigned to the green-breasted mango (A. prevostii). Description The black-throated mango is long and weighs . Both sexes of both subspecies have a slightly decurved black bill. Adult males of the nominate subspecies have metallic bronze green crown, nape, and upperparts. Their innermost pair of tail feathers are dusky bronze green and the outer four pairs are metallic magenta-rufous with dark blue edges and a violet sheen. Their wings are grayish brown. They have a black chin, throat, and middle of the chest with metallic bluish green beside it and to the vent. Their sides and flanks are bronzy green. Nominate females have metallic green on the crown, nape, and upperparts without the male's bronzy tone. Their innermost pair of tail feathers are dusky bronze green like the male's, but the outer four pairs are rufous with a wide purple base and whitish tips. They have a thin and ragged black chin and throat stripe with a white border. The rest of their underparts are green. Juveniles are somewhat similar to adult females but have a white chin, throat, and breast with a thin black central line . Some brown on the head and back feathers gives a barred appearance. Their lower back and rump feathers have dull cinnamon-buff tips. Juvenile females have some rusty or buff beside the white of the underparts, green undertail coverts, and a mostly dull carmine underside of the tail. Within the nominate subspecies there are some differences in the shade of the upperparts' green, spanning from pure dark green to green with a copper or bronze tone. Subspecies A. n. iridescens is essentially the same as the nominate. Distribution and habitat The nominate subspecies of the black-throated mango is found from western Panama into much of Colombia and Venezuela, the Guianas, eastern Ecuador and Peru, northern and eastern Bolivia, eastern Paraguay, far northern Argentina, most of Brazil, and on