Colibri à long bec

En bref

• Scientific Name: Heliomaster longirostris
• Spanish Name: Colibrí piquilargo
• Famille : Trochilidae
• Known Nicknames: Colibrí Piquilargo, Long-billed Star-throat
• Longueur moyenne : 11–12 cm / 4,3–4,7 pouces
• Average Weight: 6–7 g / 0.21–0.25 oz
• Wingspan: 13–15 cm / 5.1–5.9 in
• Key Feature: Exceptionally long, straight black bill and metallic purple-red gorget in males
• Primary Diet: Nectarivore (Nectar and small insects)
• Range: Southern Mexico to southern Brazil, Peru, and Trinidad
• Habitat: Canopy and edges of humid forests, woodland clearings, and plantations
• Structure sociale : Solitaire
• Nesting/Breeding: Shallow cup nest on high, thin horizontal branches
• Statut de conservation : Préoccupation mineure (LC)
• Évolution démographique : Stable

The Long-billed Starthroat (*Heliomaster longirostris*) is an elegant, relatively large hummingbird easily distinguished by its exceptionally long, straight, needle-like bill and a signature white stripe trailing down its rump. Primarily found in the tropical forest edges and open woodlands of Central and South America, this bird is a visual marvel; the male sports a glittering violet-blue crown and a radiant, metallic magenta throat that flashes brilliantly in the sunlight. Both sexes share a distinctive white "mustache" streak that extends from the base of the bill, contrasting beautifully against their bronze-green upperparts and greyish underbellies. Known for its steady hovering and a preference for perching on high, exposed branches, the Long-billed Starthroat is a sophisticated aerialist that combines striking jewel-toned plumage with remarkable specialized anatomy for reaching deep into nectar-rich blooms.

Faits amusants

This hummingbird is distinguished by its remarkably long, straight bill, an adaptation that grants it exclusive access to the nectar of deep, tubular flowers ignored by other species. Rather than aggressively defending a single patch of flowers, it often employs a "traplining" strategy, following a precise daily circuit of food sources over a wide area. A quirky sight in the canopy, it frequently perches on the very tips of high, leafless branches, where its thin profile and stillness make it look more like a large dragonfly than a bird. Its most striking feature is the iridescent throat patch, which can transform from a somber dark hue to a vivid, glowing magenta with just a slight tilt of the head toward the sun.

Habitats et répartition

This species maintains a broad geographical range extending from southern Mexico through Central America and into South America, reaching as far south as southern Brazil and Bolivia, and including the island of Trinidad. It primarily occupies lowland areas, though it is occasionally found in foothill zones up to elevations of approximately 1,500 meters. Its preferred habitats include the edges of humid forests, gallery forests, second-growth woodlands, and open areas with scattered trees. It is frequently observed in the forest canopy or in human-altered environments such as plantations and gardens. It favors semi-open landscapes where flowering trees are abundant, typically avoiding the deep interior of dense, primary forests.

Comportements & Reproduction

Primarily solitary, these birds employ a "trap-lining" foraging strategy, navigating a consistent circuit between dispersed nectar sources rather than defending a single territory. Their social structure is minimal, with interactions limited to brief territorial skirmishes or mating displays, as they do not form pair bonds or communal groups. This independent lifestyle allows them to exploit high-canopy flowers across a wide area, though they may become more defensive around high-value flowering trees. Reproduction is characterized by a polygynous mating system where males perform U-shaped aerial displays to attract multiple partners. After mating, the female assumes all parental duties, independently constructing a shallow, cup-shaped nest of plant fibers and lichen bound with spider silk. Typically situated on a high horizontal branch, the nest is well-camouflaged to protect the two eggs. The female manages all incubation and chick-rearing duties alone, a strategy that ensures the survival of the brood while the male continues to seek further mating opportunities.

Alimentation

The Long-billed Starthroat primarily subsists on nectar obtained from a diverse array of flowering plants, including bromeliads, heliconias, and various leguminous trees. To supplement this sugar-rich diet with necessary protein, it actively hunts small insects and spiders, often capturing them mid-air through a technique known as hawking or gleaning them directly from vegetation. An interesting aspect of its feeding behavior is that it is a "trap-liner," meaning it follows a set, repeatable route between widely dispersed nectar sources rather than aggressively defending a single floral territory like many other hummingbirds. Its exceptionally long, straight bill is perfectly adapted for extracting nectar from deep, tubular blossoms that are inaccessible to many other species, making it a specialized and efficient forager within its tropical habitat.

Couleurs

The Long-billed Starthroat features metallic bronze-green upperparts and a brilliant iridescent magenta throat. It is characterized by a glittering blue or teal crown, a sharp white stripe behind the eye, and a white malar streak. Its underparts are grayish with a dark central wash, while its green dorsal coloring offers effective camouflage within tropical foliage.