Introduction
The White-whiskered Hermit (Phaethornis yaruqui) is a medium-sized hummingbird in the family Trochilidae. It is a forest-dwelling hermit of western Colombia and western Ecuador, where it usually occurs in humid lowland and foothill habitats. Its long, decurved bill, dark plumage and contrasting pale facial stripes are characteristic.
Physical Description
The White-whiskered Hermit is approximately 13–15 centimetres long, with a slender body and a long, decurved bill of about 4.5–4.7 centimetres. The upperparts are metallic green, while the underparts are generally greyish or dusky, with a paler central throat and breast area.
The head has a bronzy or coppery crown, a dark mask behind the eye, a pale supercilium and a prominent pale malar stripe, giving the species its common name. The tail is dark, often with a bluish sheen, and the central tail feathers have conspicuous pale tips. The bill has a dark upper mandible and a reddish or orange-red base to the lower mandible.
Males and females are broadly similar. Females may show more extensive pale facial markings and slightly different proportions, but sexing a single bird in the field can be difficult. Young birds are generally duller and less sharply marked than adults.
Range and Habitat
The species occurs along the Pacific slope of the Andes from western Colombia through western Ecuador, including the Chocó region and adjacent foothills. It is largely resident, although local or seasonal movements to different elevations may occur in response to flowering and other food resources.
White-whiskered Hermits usually inhabit humid lowland, foothill and montane forest, particularly dense understorey, forest edges, ravines and humid secondary growth. They are often associated with Heliconia and other plants bearing long tubular flowers. Most records are from below about 1,200 metres, although the species can occur locally at higher elevations, approaching 2,000 metres.
The species is restricted to the humid forests of north-western South America. Habitat loss and fragmentation have reduced suitable forest in parts of its range, particularly where agriculture, plantations, roads and settlement replace native vegetation.
Where to See This Species
Milpe Bird Sanctuary, Pichincha, Ecuador
Milpe Bird Sanctuary lies in the humid foothills west of Quito, within the Mindo bioregion. Museum records document White-whiskered Hermits at the sanctuary, making its forest trails, flowering plants and dense understorey a realistic place to look for the species. Early morning is usually the most productive period for observing hummingbirds.
Nearby accommodation: Mindo is the nearest practical base, with lodges, guest houses, hotels and self-catering accommodation.
Maquipucuna Reserve, Pichincha, Ecuador
Maquipucuna protects humid foothill and cloud-forest habitat in the western Andes, and specimen records confirm the presence of White-whiskered Hermit in the reserve area. Look along shaded trails, forest edges and flowering understorey, especially at lower and middle elevations.
Nearby accommodation: Nanegalito and the wider Mindo area provide lodges, guest houses and small hotels suitable for visiting the reserve.
Farallones de Cali National Natural Park, Valle del Cauca, Colombia
White-whiskered Hermit is included in the park’s documented bird records. The park’s humid forest and lower montane habitats in the Cali and Jamundí sectors provide suitable conditions, although sightings may be less predictable than at sites with hummingbird feeders or concentrated flowering plants.
Nearby accommodation: Cali is the main practical gateway, with hotels and guest houses, while Jamundí offers additional accommodation closer to some access points.
Behaviour and Diet
The White-whiskered Hermit is usually seen alone as it moves rapidly through the lower and middle levels of humid forest. It commonly follows a regular route between scattered flowering plants, a foraging strategy known as trap-lining. Recorded and likely food plants include Heliconia, Columnea, Alloplectus, Macleania and Psammisia.
Nectar provides most of its energy, while small insects and spiders supply additional protein. The species may forage quietly through dense vegetation and can be easier to detect by its movement or calls than by sight.
Males may gather at display or singing assemblies, where they call repeatedly from low perches and compete for the attention of females. Detailed information about territoriality varies between sites, and feeding visits should not automatically be interpreted as defence of a fixed territory.
Breeding information remains limited. A documented nest is a small, cone-shaped cup attached with spider silk to the underside of a broad leaf, including Heliconia leaves. Nests may contain two eggs. The female is responsible for nest construction and parental care, while males do not provide sustained care for the young. The precise incubation period and lifespan of the species are not well established.
Identification Tips
- Look for a medium-sized, dark hermit hummingbird with a long, strongly decurved bill.
- The pale supercilium and pale malar stripe contrast with the dark facial mask and are the most useful field marks.
- The bronzy crown, green upperparts, dusky underparts and dark bluish tail help confirm the identification.
- Watch for pale tips on the central tail feathers, particularly when the bird turns or brakes in flight.
- Search in shaded forest understorey, along narrow trails, ravines and flowering patches rather than only at exposed garden feeders.
- Distinguish it from other local hermits by combining the pale facial markings with its dark overall appearance and relatively short, dark-looking tail. Identification should be made from the complete combination of features, as lighting can make the facial stripes appear more or less prominent.
Conservation Status
The White-whiskered Hermit is currently assessed as Least Concern. It has a relatively broad distribution across western Colombia and western Ecuador, but suitable habitat is being reduced and fragmented by agricultural expansion, logging, plantations, roads and other development.
A precise global population estimate is not available, and the population trend is not sufficiently documented for a confident numerical assessment. Maintaining connected tracts of humid forest, protecting flowering understorey and managing remaining forest outside formal reserves are important conservation measures.
Frequently Asked Questions
Where is the White-whiskered Hermit found?
It is found in western Colombia and western Ecuador, especially in humid forests along the Pacific slope of the Andes and adjacent foothills.
What habitat does the White-whiskered Hermit prefer?
It prefers humid lowland and foothill forest, forest edges, dense secondary growth, ravines and other habitats with thick understorey and abundant tubular flowers.
What does the White-whiskered Hermit eat?
Its diet consists mainly of nectar from a succession of flowering plants. It also takes small insects and spiders, particularly when feeding young.
Why is it called the White-whiskered Hermit?
The name refers to the conspicuous pale malar stripe or whisker-like feathering on each side of the face.
Is the White-whiskered Hermit migratory?
It is generally regarded as resident, although individuals may make local or seasonal movements between elevations as flowering conditions change.
Is the White-whiskered Hermit endangered?
No. The species is currently classified as Least Concern, although continuing forest loss and fragmentation remain important concerns.
References
- BirdLife International
- IOC World Bird List
- Instituto Nacional de Biodiversidad (INABIO)
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