Family Hummingbirds (Trochilidae)


Little Woodstar (Chaetocercus bombus)


French: Colibri bourdon German: Hummelelfe Spanish: Colibrí abejorro

Chætocercus bombus


, 1871,

Citado, Ecuador


Frequently placed in genus Acestrura along with C. mulsant, C. heliodor, C. astreans and C. berlepschi, but no evidence in external morphology justifies treatment in a genus separate from C. jourdanii. Monotypic.


Andes of extreme SW Colombia (S Nariño) and W Ecuador to N Peru; also locally in E Ecuador and NC Peru (Huánuco).

Descriptive notes

6–7 cm. Male has straightish black bill; plumage generally dark bronzy blue-green, postocular line buffy white, curving around gorget to join buffy pectoral band;... read more


Presumed song a mixture of chips, twitters and buzzy notes, “tsitsitsi..tzzeee-tzzeee..chichip”.... read more


Deciduous forest of transitional zone between humid and semi-humid region, from sea-level up to... read more

Food and feeding

Records of food plants visited for nectar include flowering Agave, Asteraceae, Cavendishia, Inga, Muntingia... read more


No information available; one record of displaying males in Mar.


Presumably sedentary, seasonal altitudinal dispersal most likely.

Status and conservation

VULNERABLE. Previously listed as Endangered. CITES II. Uncommon. The moist forest habitat of this hummingbird is under severe threat of deforestation, and in Ecuador, most... read more

Recommended citation

Züchner, T., de Juana, E. & Boesman, P. (2020). Little Woodstar (Chaetocercus bombus). 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 24 January 2020).