En bref

• Scientific Name: Myiopagis caniceps
• Spanish Name: Elenia cabecigrís
• Famille : Tyrannidae
• Known Nicknames: Gray-crowned Elaenia, Gray-headed Tyrannulet
• Average Length: 12–13 cm / 4.7–5.1 in
• Average Weight: 10–13 g / 0.35–0.46 oz
• Wingspan: 18–21 cm / 7.1–8.3 in
• Key Feature: Pale gray head contrasting with olive-green back and white throat
• Régime alimentaire principal : Principalement insectivore
• Range: Central and South America from Panama to northern Argentina
• Habitat: Tropical lowland and foothill forests, forest edges, and clearings
• Structure sociale : Solitaires ou en couples
• Nidification/Reproduction : Nid en forme de coupe ouverte dans la fourche d'un arbre
• Statut de conservation : Préoccupation mineure (LC)
• Évolution démographique : Stable

The Gray-headed Elaenia (*Myiopagis caniceps*) is a small, active flycatcher of the Neotropical lowlands, distinguished by its striking slate-gray head and nape that contrast sharply with its olive-green back and pale yellow belly. A unique feature is its subtle, pale crown patch—often partially concealed—that it can flash during displays, while its bold, whitish wing-bars and narrow white eye-ring add to its crisp, elegant appearance. Specializing in sallying from mid-canopy perches to snatch insects, this bird is also notable for its thin, high-pitched calls that often reveal its presence before it is seen, making it a quiet but rewarding find for birders exploring humid forests from Panama to the Amazon.

Faits amusants

Despite its name, the "gray-headed" Elaenia is a master of vocal disguise, often incorporating perfect imitations of other bird calls into its own song, a behavior called vocal mimicry that may help it defend territory or confuse predators. It also has a peculiar habit of repeatedly flicking its wings while perched, a motion so rapid it can look like a nervous twitch, possibly to flush out hidden insects. One of its most unique adaptations is a specialized stomach that can digest the waxy, hard-coated fruits of the *Loranthaceae* mistletoe family, a food source many other birds avoid, making it a crucial seed disperser for these parasitic plants.

Habitats et répartition

The Gray-headed Elaenia primarily inhabits lowland and foothill forests, favoring humid tropical and subtropical moist forests, including terra firme and várzea forests, as well as forest edges, clearings with scattered trees, and occasionally secondary growth. It is typically found from the canopy to the mid-story, rarely descending to the understory. Its geographical range spans a broad area of South America east of the Andes, from eastern Colombia, Venezuela, and the Guianas south through much of the Amazon Basin in Brazil, eastern Ecuador, Peru, and northern Bolivia, extending into the Pantanal and adjacent regions of Paraguay and northern Argentina.

Comportements & Reproduction

The Gray-headed Elaenia is generally solitary or found in pairs during the breeding season, with no complex social structure beyond the mated bond. Mating appears to be monogamous for the season, with males defending a small territory through vocalizations and brief chases. Courtship involves the male performing short, fluttering display flights near the female while calling, often from an exposed perch. The female builds a small, cup-shaped nest of moss and plant fibers, typically placed in a tree fork, and lays two whitish eggs with reddish speckles. Both parents share incubation duties, which last about 14–16 days, and continue to cooperate in feeding the chicks until fledging. A unique reproductive strategy is their reliance on scattered, isolated trees in open habitats, which reduces nest predation by making nests harder for predators to locate systematically, though no cooperative breeding or brood parasitism is documented.

Alimentation

The Gray-headed Elaenia is primarily frugivorous, with fruits and small berries forming the bulk of its diet, particularly those from mistletoes, melastomes, and other Neotropical trees and shrubs. It actively plucks these items while perched or during short sallies from a branch. However, it is not exclusively a fruit-eater; it also supplements its diet with small arthropods, including insects and spiders, which it often captures by making quick aerial forays or by gleaning them from foliage. An interesting aspect of its feeding behavior is its role as a seed disperser, as it swallows many fruits whole and later excretes the seeds, contributing to forest regeneration. Additionally, during the breeding season, the elaenia shifts to a higher proportion of animal prey to meet the protein demands of its chicks.

Couleurs

The Gray-headed Elaenia has a distinctly gray head and neck contrasting with an olive-green back and pale yellow belly. Its wings are dark with two bold white wing bars, and the tail is dusky with pale edges. This plumage provides camouflage in the dappled light of forest canopies, with the gray head blending against the sky and the olive back matching foliage.

Distribution Map

Places linked to this species. A sighting is never guaranteed.

Détails de l'attraction

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