Sick classifies the Black Jacobin as a Brazilian endemic but the HBW includes parts of Paraguay, Uruguay and Argentina in its range.

It is a fairly large and strikingly black and white hummingbird which is found in woodlands and gardens in south-east Brazil. The lower back, uppertail-coverts and upperwing coverts are a shining bronzy-green.

The immature has broad cinnamon bands on the sides of the throat as seen in the third and fourth photos.

The nest is cup-shaped, made of vegetable fibres and spiders' webs and is attached to the midrib of a strong horizontal leaf.

There are recordings on xeno-canto, a distribution map from NatureServe and Additional information available via Avibase .