Dusky Starfrontlet
Scientific name: Coeligena orina
The Dusky Starfrontlet is a rare, range-restricted hummingbird of the Western Andes of Colombia. Its global population is estimated at roughly 250–2,499 mature individuals, the trend is decreasing, and it is listed as Endangered, monotypic, and considered non-migratory (though it likely makes local elevational movements).
At a Glance
Family: Trochilidae (hummingbirds)
Clade: Heliantheini – Brilliants
Genus group: Coeligena — 15 species, 28 subspecies
Range: Very restricted areas in the Western Andes of Colombia, mainly in high-elevation cloud forests and elfin forests of a few isolated massifs.
Habitat: Humid montane and elfin forests, forest edges, and shrubby, mossy slopes with abundant flowering epiphytes and shrubs.
Elevation: Primarily at high elevations within the upper montane and elfin forest belt.
Length: Around 11–13 cm in total length.
Weight: Approximately 6–8 g, relatively robust for a hummingbird.
Number of mature individuals: 250–2,499
Population trend: Decreasing
Status: Endangered (IUCN)
Name Origin
The genus name Coeligena comes from Latin roots meaning “born of heaven” or “sky-born,” evoking both the high Andean habitats and the luminous plumage pattern typical of starfrontlets. The species name orina originates from the original description and is applied specifically to this dark, high-elevation starfrontlet. The English name “Dusky Starfrontlet” references the bird’s relatively dark overall coloration compared to other, more brightly colored starfrontlets, while still linking it clearly to the starfrontlet group.
Subspecies & Distribution
The Dusky Starfrontlet is monotypic, with no recognized subspecies.
Coeligena orina orina
Known only from a small number of high-elevation sites in the Western Andes of Colombia, where it inhabits humid cloud forests, elfin forests, and adjacent shrubby slopes on a few isolated ridges and massifs.
Overall, the species occupies a very narrow and fragmented range, with populations confined to patches of intact upper montane and elfin forest. This natural patchiness, combined with human-driven habitat loss, strongly limits its distribution and connectivity between sites.
Ledged
Green Resident
Species Overview
The Dusky Starfrontlet is one of the least-known Andean hummingbirds, restricted to a few mountain blocks in the Western Andes of Colombia. It favors wet, mossy upper montane and elfin forests, where it forages among flowering shrubs, small trees, and epiphytes. Its small, fragmented population, narrow elevational range, and ongoing habitat pressures have resulted in an Endangered status and make it a high-priority species for Andean cloud forest conservation.
Male Description
Adult males are medium-sized, dark starfrontlets with a generally dusky or sooty appearance compared to the more vividly colored congeners. They have dark, bronzy-green upperparts, a darker head and breast, and subtle iridescent highlights on the throat or upper chest that can flash greenish or bluish under the right light. The tail is fairly long and slightly forked or rounded, usually dark with a greenish or bronzy sheen. Overall, males appear as shadowy, high-montane hummingbirds with understated but intricate iridescence that is most noticeable at close range or in good light.
Female Description
Females are similar in size but somewhat duller and less iridescent than males. They show dark greenish or bronzy upperparts and paler grayish or buff-tinged underparts, often with faint spotting or mottling on the throat and chest. The tail is dark with some green or bronzy gloss and may show slightly paler tips on the outer feathers. In the field, females can be difficult to separate from other dark Andean hummingbirds, and are best identified by their association with the Dusky Starfrontlet’s restricted range and characteristic high-elevation forest habitat.
Habitat & Behavior
Dusky Starfrontlets inhabit humid upper montane and elfin forests, forest edges, and adjacent shrubby, mossy slopes where epiphytes and flowering shrubs are abundant. They feed primarily on nectar from high-elevation flowers, including canopy and edge shrubs and trees, and also take small arthropods for protein. The species is considered resident within its limited range, although individuals may move locally along the elevational gradient in response to flowering patterns and seasonal changes rather than undertaking broad-scale migrations.
Population
The estimated global population of Dusky Starfrontlet is small, on the order of 250–2,499 mature individuals. The species is known from few localities, and its habitat is naturally patchy because of the limited extent of suitable high-elevation forest. The population is believed to be decreasing due to ongoing pressures on its specialized montane habitat, making the species highly susceptible to further declines even from relatively small additional losses or disturbances.
Conservation
Dusky Starfrontlet is listed as Endangered because of its small and declining population, restricted and fragmented range, and high vulnerability to habitat loss and degradation. Principal threats include deforestation and degradation of high-montane and elfin forest for agriculture, cattle grazing, and human settlement, as well as potential impacts from climate change that could shift or shrink suitable elevational habitat. Conservation measures focus on protecting and restoring cloud forest and elfin forest within its known range, establishing and effectively managing reserves, and conducting further surveys and ecological research to better understand its distribution, population size, and habitat requirements.
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Related species in the Coeligena genus (15 species total):
Please note: The content provided in this article reflects Anthony’s personal experience and photographic approach. Results can vary depending on light, weather, location, equipment, subject behavior, and field conditions.