Oreotrochilus adela


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Oreotrochilus adela
Species Authority: (d'Orbigny & Lafresnaye, 1838)
Common Name(s):
English Wedge-tailed Hillstar
Spanish Colibrí de Cochabamba

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2012
Date Assessed: 2012-05-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Facilitator/Compiler(s): Benstead, P., Capper, D., Sharpe, C J, Symes, A.
This species has a moderately small global population which is suspected to be declining moderately rapidly owing to habitat loss and within which all subpopulations are small. It is consequently classified as Near Threatened.

Geographic Range [top]

Range Description: Oreotrochilus adela has a restricted range in the high Andes of La Paz, Cochabamba, Potosí and Chuquisaca, south-west Bolivia (Armonía 1995). There are also reports of breeding birds from Argentina.

Argentina; Bolivia, Plurinational States of
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: The population is preliminarily estimated to number at least 10,000 individuals, roughly equating to 6,700 mature individuals. This requires confirmation.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: It inhabits arid montane scrub, Polylepis forest and disturbed habitats at 2,550-4,000 m (Fjeldså and Krabbe 1990, Armonía 1995, Parker et al. 1996).

Systems: Terrestrial

Threats [top]

Major Threat(s): The main threats are heavy grazing by livestock and the uncontrolled use of fire, which combine to prevent Polylepis regeneration, especially where cutting for timber, firewood and charcoal occurs (Fjeldså and Kessler 1996). The change from camelid to sheep and cattle farming, erosion and soil degradation caused by agricultural intensification and afforestation, especially where exotic tree species (e.g. Eucalyptus) are planted (Fjeldså and Kessler 1996), are contributory factors.

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
CITES Appendix II.

Conservation Actions Proposed
Establish adequate protected areas to protect the species's core range. Monitor population at strongholds and search for the species in potentially suitable habitat at new sites. Study its ecology and its ability to persist in degraded and fragmented habitats. Attempt to obtain an accurate estimate of its population size and trends. Quantify extent of habitat losses.

Citation: BirdLife International 2012. Oreotrochilus adela. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 03 September 2015.
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