<trp-post-container data-trp-post-id='290705'>Chestnut-sided Shrike-vireo

Vireolanius melitophrys

Open Bird Bucket List ↗

En bref

  • Scientific Name: Vireolanius melitophrys
  • Spanish Name: Vireón pechicastaño
  • Family: Vireonidae
  • Known Nicknames: Highland Shrike-Vireo
  • Average Length: 16.5–18 cm / 6.5–7.1 in
  • Average Weight: 28–35 g / 1.0–1.2 oz
  • Wingspan: 25–29 cm / 10–11.5 in
  • Key Feature: Broad chestnut band across the chest and flanks, bright yellow supercilium, and a heavy hook-tipped bill
  • Primary Diet: Insectivore (primarily large insects, caterpillars, and occasionally small fruits)
  • Range: Highlands of central and southern Mexico south to Guatemala
  • Habitat: Humid montane pine-oak and evergreen forests
  • Social Structure: Solitary, in pairs, or occasionally joining mixed-species foraging flocks
  • Nesting/Breeding: Cup nest suspended in high tree canopy branches
  • Statut de conservation : Préoccupation mineure (LC)
  • Évolution démographique : En baisse

The Chestnut-sided Shrike-vireo (*Vireolanius melitophrys*) is a striking and elusive songbird native to the high-altitude pine-oak forests of Mexico and Guatemala. Living up to its name, this species possesses a heavy, hooked, shrike-like bill used to forage for large insects and small vertebrates high in the forest canopy. Its general appearance is exceptionally vibrant, featuring a moss-green back, a slate-grey crown, a brilliant yellow breast, and a bold black stripe running through its eyes. What truly sets this bird apart, however, are its unique diagnostic features: a bright yellow eyebrow (supercilium) juxtaposed against a snowy-white throat, and the rich, chestnut-rufous patches adorning its flanks that give the species its name. Though more often heard than seen due to its canopy-dwelling habits, its persistent, clear whistled calls and dazzling plumage make it a highly sought-after prize for birdwatchers exploring Mesoamerica's mountainous woodlands.

Faits amusants

Despite its striking, clown-like facial markings and rich chestnut flanks, this canopy dweller is famously dubbed a "ghost" by birdwatchers because it moves with agonizing slowness through the highest treetops, remaining virtually invisible. Armed with a heavy, hooked, shrike-like beak, it acts as a miniature predator, capturing massive caterpillars and even small lizards, which it violently thrashes against branches to tenderize before swallowing. To top off its quirky persona, males are relentlessly persistent vocalists, sometimes repeating a single, monotonous, clear whistle for hours on end from the same hidden perch, driving birders mad as they try to pinpoint the source of the sound.

Habitats et répartition

This species is native to the highlands of Mesoamerica, with a geographical range extending from central and southern Mexico down into western Guatemala. It is primarily found along the mountain ranges of the Trans-Mexican Volcanic Belt, the Sierra Madre del Sur, and the highlands of Chiapas and neighboring Guatemala.

Within this range, it inhabits humid montane environments, showing a strong preference for oak, pine-oak, and cloud forests at elevations generally between 1,200 and 3,000 meters. It is a canopy-dwelling bird, spending most of its time in the upper levels of mature forests where it utilizes dense foliage, mosses, and epiphytes for foraging.

Comportements & Reproduction

This species is generally solitary or found in monogamous pairs, occasionally joining mixed-species foraging flocks in the high canopy of humid pine-oak and cloud forests. They are relatively slow, deliberate foragers that search for insects and small fruits among the foliage, maintaining contact with their mates through persistent, clear whistling calls. Highly territorial, males use these repetitive, melancholic songs to defend their nesting territories from rivals.

During the breeding season, which typically spans from April to July, pairs construct a delicate, cup-shaped nest suspended from a horizontal fork high in the tree canopy. The nest is expertly camouflaged using mosses, lichens, and spiderwebs to blend in with the surrounding foliage. While specific details on incubation are limited due to their secretive nesting habits, both parents are believed to share in the duties of incubating the clutch—typically consisting of two to three eggs—and caring for the subsequent nestlings.

Alimentation

The Chestnut-sided Shrike-vireo is primarily an insectivore that feeds on a diverse array of large invertebrates, including caterpillars, beetles, cicadas, grasshoppers, and true bugs, which it occasionally supplements with small fruits and berries. Foraging high in the upper canopy of oak and pine-oak forests, this bird employs a slow, deliberate searching strategy, meticulously gleaning prey from leaves and twigs or executing short, acrobatic sally-strikes. An interesting aspect of its feeding behavior is its shrike-like handling of food; possessing a heavy, hooked bill, it frequently subdues large or dangerous prey by vigorously beating them against branches before consumption. Additionally, despite its typically sluggish and solitary movement, it regularly joins mixed-species foraging flocks, capitalizing on the insects flushed out by more active bird species as they move through the dense foliage.

Couleurs

The Chestnut-sided Shrike-vireo features a bright olive-green back and crown that blend seamlessly into canopy foliage, contrasted by a striking white face marked with a bold yellow eyebrow, a black eye-stripe, and a black mustache stripe. Its most defining feature is a vibrant, broad chestnut-rufous band that sweeps across its white breast and down its flanks. This high-contrast, disruptive patterning breaks up the bird's silhouette, providing excellent camouflage amid the dappled light of its highland forest habitat.

Distribution Map

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

Use the map filter to show only featured places.

Featured places