Family Hummingbirds (Trochilidae)

Least Concern

Black-bellied Thorntail (Discosura langsdorffi)


French: Coquette de Langsdorff German: Brustband-Fadenelfe Spanish: Rabudito ventrinegro

Trochilus langsdorffi


, 1821,



Two subspecies recognized.

Subspecies and Distribution
  • D. l. melanosternon (Gould, 1868) – S Venezuela and SE Colombia S to E Ecuador, E Peru and W Brazil (R Madeira, R Guaporé, R Negro, W Mato Grosso).
  • D. l. langsdorffi (Temminck, 1821) – coast of E Brazil (SE Bahia, Espírito Santo, E Rio de Janeiro).
  • Descriptive notes

    Male 12–13·7 cm (including long tail), female 7·4–7·6 cm; c. 3·2 g. Male has short straight black bill; crown iridescent emerald green... read more


    Mostly silent. A short “tsip” or “chip” given when feeding. When hovering, wings make a low bee-... read more


    Humid lowland forest and edges, at 100–300 m, in Amazonia principally in terra firme... read more

    Food and feeding

    Feeds on arthropods and nectar of flowering Calliandra, Inga trees, Lantana, Mimosa, Vochysia... read more


    Nov–Mar (or Nov–Feb in SE Brazil) and Sept in E Ecuador. Nest cup-shaped, made out of the soft down of Typha,... read more


    No information available. Probably sedentary.

    Status and conservation

    Not globally threatened. CITES II. Generally considered rare throughout range, although easily overlooked due to its canopy and subcanopy habits. Habitat under severe threat... read more

    Recommended citation

    Züchner, T., Kirwan, G.M. & Boesman, P. (2019). Black-bellied Thorntail (Discosura langsdorffi). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 16 December 2019).