Introduction
The Great-billed Hermit (Phaethornis malaris) is a large hermit hummingbird of northern and central South America. It inhabits humid forest, especially shaded understorey and forest edges, where its exceptionally long, decurved bill allows it to reach nectar in deep flowers.
Physical Description
The Great-billed Hermit measures approximately 13–17 cm in length, with regional variation. It has greenish or bronze-brown upperparts, paler greyish, buff or ochraceous underparts, and a dark facial mask bordered by pale buff or whitish stripes. The bill is long, heavy and strongly decurved, with a reddish or pinkish lower mandible in some individuals.
The tapered tail has elongated central feathers with conspicuous pale or white tips. These tail feathers are useful field marks when the bird is seen moving through dark vegetation. Plumage varies geographically, and some subspecies have more strongly marked throats or warmer ochraceous underparts than others.
Males and females are broadly similar in colour. Females may have a slightly shorter, more strongly curved bill, but sex is not usually obvious in the field. Juveniles are less well documented than adults and may show duller, less sharply defined facial and throat markings.
Range and Habitat
The species occurs in South America from Colombia, Venezuela, Ecuador and Peru eastwards through Bolivia, Brazil, French Guiana and Suriname. Its distribution includes parts of the Amazon Basin, the Guiana Shield and a separate area of coastal eastern Brazil. Several geographic forms are recognised, although the treatment of some populations and subspecies has varied between taxonomic authorities.
The Great-billed Hermit is mainly associated with humid lowland and foothill forest, particularly terra firme forest, shaded edges, riverine vegetation, secondary growth and dense understorey. It is generally found below about 1,000 metres, although records from higher elevations occur locally in the Andean foothills. The species is resident rather than a long-distance migrant.
Where to See This Species
Manu National Park, Madre de Dios and Cusco, Peru
Great-billed Hermits are documented in Manu National Park, one of the most important protected areas for lowland Amazonian birds. Look for the species in humid forest and shaded understorey, particularly around forest trails, river margins and other areas with abundant flowering plants. The park is extensive and access is regulated, so sightings are most realistic on organised visits to established research, lodge or visitor areas.
Nearby accommodation: Lodge and guesthouse accommodation is available through the Manu gateway communities and around Boca Manu, while some access routes begin from Cusco or Paucartambo.
Yasuní National Park, Orellana, Ecuador
Yasuní National Park supports a rich Amazonian bird community, including the Great-billed Hermit. Suitable areas include mature lowland rainforest, forest trails and shaded clearings around established visitor and research facilities. The species is most likely to be encountered quietly foraging in the understorey rather than in exposed, open habitat.
Nearby accommodation: The main practical base is Coca, with rainforest lodges and guided accommodation reached by river transport from the town.
Behaviour and Diet
The Great-billed Hermit is active during the day and is usually encountered alone. Like other hermit hummingbirds, it may follow a regular trapline, revisiting dependable nectar sources along a route rather than defending a single flower patch continuously. Its long bill is particularly useful for reaching nectar in tubular flowers that are difficult for shorter-billed hummingbirds to exploit.
Nectar forms the main energy source, supplemented by small insects and other arthropods. These animal foods provide important protein, especially during breeding. By carrying pollen between flowers, the species contributes to pollination in tropical forest communities.
Breeding information is limited compared with that of better-studied hummingbirds. The female is responsible for nest construction and care of the young. The nest is a small, elongated structure made from soft plant material and spider silk, typically attached beneath a broad leaf or other sheltered vegetation in the forest understorey.
Identification Tips
- Look for a relatively large, subdued hummingbird with greenish-brown upperparts and buff, greyish or ochraceous underparts.
- The very long, heavy and decurved bill is the most distinctive feature.
- Note the dark mask through the eye, bordered by pale facial stripes.
- The central tail feathers are elongated and white-tipped, producing a pointed appearance.
- It is usually found in shaded forest understorey, where its quiet, direct flight can make it difficult to observe.
- The Long-tailed Hermit can occur in some of the same broad regions. The Great-billed Hermit generally has a bulkier bill and a different combination of facial, throat and underpart markings, but careful attention to range, plumage variation and vocalisations may be needed for a confident identification.
Conservation Status
The Great-billed Hermit is classified as Least Concern on the IUCN Red List. It has a broad South American distribution, but local populations may be affected by deforestation, forest fragmentation, agricultural conversion, mining, roads and other forms of habitat disturbance.
Protecting extensive blocks of humid forest, maintaining habitat corridors and retaining flowering plants in forest edges and secondary growth can help conserve the species. The separate coastal populations of eastern Brazil may be more vulnerable because suitable forest there is naturally fragmented and has experienced substantial historical loss.
Frequently Asked Questions
Where does the Great-billed Hermit live?
It lives in humid tropical forest in northern and central South America, including parts of the Amazon Basin, the Guiana Shield, the Andean foothills and coastal eastern Brazil.
What does the Great-billed Hermit eat?
Its diet consists mainly of nectar, supplemented by small insects and other arthropods. Its long, curved bill helps it feed from deep flowers.
How large is the Great-billed Hermit?
It is approximately 13–17 cm long, although size varies between geographic populations. Much of its apparent length comes from its bill and elongated central tail feathers.
Is the Great-billed Hermit migratory?
It is generally considered resident. Individuals may move locally in response to flowering conditions, but it is not known for regular long-distance migration.
How can the Great-billed Hermit be identified?
Look for its large size, exceptionally long decurved bill, greenish-brown upperparts, pale facial stripes, dark eye mask and white-tipped central tail feathers.
Is the Great-billed Hermit endangered?
No. The species is currently classified as Least Concern, although habitat loss and fragmentation remain important local threats, particularly where forest is cleared or isolated.
References
- BirdLife International
- AviList: The Global Avian Checklist
- Avibase, Bird Checklists of the World
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