Family Hummingbirds (Trochilidae)

Least Concern

Chiribiquete Emerald (Chlorostilbon olivaresi)


French: Émeraude d’Olivares German: Chiribiquete-Smaragdkolibri Spanish: Esmeralda del Chiribiquete

Chlorostilbon olivaresi


, 1996,

Sierra de Chiribiquete, south-east Colombia


A member of the C. mellisugus complex, and sometimes considered conspecific with C. mellisugus (sensu lato), but differs in its much larger size, “fully 35–40% heavier than all other forms, which do not differ among themselves”#R (score estimated at 3); longer bill (score judged definitely 3, but this feature must co-vary with size; ns); basal half of bill red in males, only a trace of red in females (2); dull, non-iridescent crown (male), as in C. gibsoni (3); and extensively grey bases of lateral rectrices (female), as in C. gibsoni (1). Differs from C. gibsoni in its size (3); bill colour (2); much shallower tail fork (2); lateral rectrices more truncate (male) to rounded (female) at tip (1); and breast and throat much stronger blue (male) (2). Monotypic.

What do (1) and (2) mean? Learn more about the scoring system.

Sierra de Chiribiquete, in Guaviare and Caquetá, SC Colombia.

Descriptive notes

8·5–9 cm; male 3·8 g, female 3·6 g. Much larger and longer-billed than C. mellisugus. Male has upperparts metallic green, sides of head... read more


Rather silent. Song unknown. Calls include a sharp, dry, scratchy “cht”, similar to the calls of... read more


Open scrub and savanna-like vegetation on flat mesas of middle and upper regions of the Sierra de... read more

Food and feeding

Visits scattered flowers of Decagonocarpus cornutus in open areas, also blooms of other shrubs or small trees in adjacent wooded... read more


Probable season Dec–May, during dry season. Nest undescribed; no further information.


Sedentary so far as known.

Status and conservation

Not globally threatened. CITES II. Restricted-range species: occurs in Sierra de Chiribiquete Secondary Area. The commonest hummingbird in its unusual, insular habitat, most... read more

Recommended citation

Stiles, F.G. & Boesman, P. (2020). Chiribiquete Emerald (Chlorostilbon olivaresi). 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 21 February 2020).