<trp-post-container data-trp-post-id='363191'>Gray Elaenia

En bref

Migratrice

• Scientific Name: Myiopagis caniceps
• Spanish Name: Fiofío gris
• Famille : Tyrannidae
• Known Nicknames: Grey Elaenia
• Average Length: 10–12 cm / 4.0–4.7 in
• Average Weight: 8–11 g / 0.28–0.39 oz
• Wingspan: 15–18 cm / 6.0–7.1 in
• Key Feature: Plain grayish body with a semi-concealed white crown patch and two narrow white wing bars
• Primary Diet: Omnivorous (Insects and small fruits)
• Range: Widespread in South America, including the Amazon Basin, Atlantic Forest, Colombia, Venezuela, Brazil, and northern Argentina
• Habitat: Canopy and subcanopy of humid lowland forests, forest edges, and mature second growth
• Social Structure: Solitary, in pairs, or frequently associating with mixed-species foraging flocks
• Nesting/Breeding: Open cup nest built in high tree forks
• Statut de conservation : Préoccupation mineure (LC)
• Évolution démographique : En baisse

The Gray Elaenia (*Myiopagis caniceps*) is a small, energetic tyrant flycatcher native to the canopy of South American humid forests, renowned for its striking and unusual sexual dimorphism. Unlike many of its closely related relatives, the male boasts a sleek, slate-gray plumage with a pale belly, while the female is dressed in olive-green upperparts and a soft yellow underside. A truly captivating feature of this species is its semi-concealed crown stripe—bright white in males and yellow in females—which these birds can dramatically flash when excited or defending territory. Agile and constantly on the move, the Gray Elaenia is a vital member of mixed-species foraging flocks, darting through the treetops to snatch insects and small fruits while emitting its characteristic, high-pitched calls.

Faits amusants

Despite its understated gray plumage, the Gray Elaenia hides a flashy secret: a bright white crown stripe concealed on its head that it dramatically flares open like a tiny mohawk when excited or defending territory. This high-canopy acrobat is a master of "hover-gleaning," frequently performing mid-air backflips and hanging upside down to snatch insects from the undersides of leaves. Despite being notoriously difficult to spot in the treetops—earning it a reputation as a ghostly canopy dweller—it easily gives itself away with a high-pitched, descending call that sounds hilariously like a squeaky toy being squeezed.

Habitats et répartition

This species is widely distributed across South America, with a range extending from eastern Panama and Colombia eastward through Venezuela and the Guianas, and southward through Brazil, Ecuador, Peru, Bolivia, Paraguay, and into northern Argentina. It is particularly prominent throughout the Amazon Basin and the Atlantic Forest region. It primarily inhabits the canopy and subcanopy of tropical moist lowland forests, gallery forests, and deciduous woodlands. Additionally, it can adapt to semi-open areas, forest edges, and heavily degraded former forests, typically remaining high in the treetops where it actively searches for food.

Comportements & Reproduction

Typically exhibiting a solitary or paired social structure, this active canopy-dweller frequently joins mixed-species foraging flocks to hunt for insects and small fruits. It is highly agile, often hovering briefly to snatch prey from the undersides of leaves. Communication within pairs and flocks relies on a series of soft, high-pitched whistles and trills, which help individuals maintain contact amidst the dense foliage of their forest habitat. During the breeding season, monogamous pairs establish nesting territories. Their reproductive strategy relies heavily on camouflage; they construct small, cup-shaped nests high in the forest canopy, typically tucked into tree forks and decorated with lichens and mosses to mimic the surrounding bark. The female lays a small clutch, usually of two eggs, and takes on the primary responsibility of incubation. Once the young hatch, both parents actively participate in provisioning the nestlings with insects until they are ready to fledge.

Alimentation

The diet of the Gray Elaenia (*Myiopagis caniceps*) is primarily omnivorous, consisting of a diverse mix of small insects, spiders, and various small fruits and berries. As a dedicated canopy-dweller, this bird consumes beetles, caterpillars, and ants, which it often hunts while participating in mixed-species foraging flocks to maximize its feeding efficiency. An intriguing aspect of its dietary behavior is its acrobatic foraging style; the Gray Elaenia frequently utilizes "hover-gleaning"—briefly hovering in mid-air to snatch insects or pluck ripe berries directly from the tips of leaves and hard-to-reach outer twigs. Additionally, its consumption of whole berries makes it an effective seed disperser within its tropical forest habitat, as the seeds pass through its digestive tract intact and are deposited across the canopy.

Couleurs

The Gray Elaenia features distinct sexual dimorphism: males are mostly slate-gray with a paler belly, two prominent white wingbars, and a semi-concealed white crown stripe, while females are olive-green above and yellowish below. These drab, foliage-mimicking tones provide highly effective camouflage within the canopy of humid forests.