Grey-breasted Mountain-Toucan

Quick Facts

  • Scientific Name: Andigena hypoglauca
  • Spanish Name: Tucán andino pechigrís
  • Family: Ramphastidae
  • Known Nicknames: Gray-breasted Mountain-Toucan, Blue-billed Mountain-Toucan
  • Average Length: 43–48 cm / 17–19 in
  • Average Weight: 244–370 g / 8.6–13.1 oz
  • Wingspan: N/A
  • Key Feature: Bright yellow and green bill base with a black band, distinct grey breast, and chestnut-colored thighs
  • Primary Diet: Primarily Frugivore
  • Range: Andes of southern Colombia, Ecuador, and Peru
  • Habitat: High-altitude humid montane forests and forest edges
  • Social Structure: Solitary or found in pairs/small family groups
  • Nesting/Breeding: Tree hollows (often abandoned woodpecker nests)
  • Conservation Status: Near Threatened (NT)
  • Population Trend: Decreasing

The Grey-breasted Mountain-Toucan (*Andigena hypoglauca*) is a striking and resilient inhabitant of the high-altitude Andean cloud forests of South America. Perfectly adapted to cooler mountain climates with its dense, insulating plumage, this medium-sized bird features a beautiful smoky-grey breast, a rich bronze-brown back, a jet-black cap, and a vibrant yellow rump contrasted by scarlet undertail coverts. Its most defining and spectacular feature is its colorful, heavy bill, which showcases a brilliant mosaic of yellow, green, and red, marked by a unique black band at the base. As an essential seed disperser in its fragile ecosystem, this active and vocal toucan traverses the misty canopy, using its specialized beak to forage for fruits and berries, making it a true jewel of the high Andes.

Fun Facts

Thriving in chilly Andean cloud forests up to 3,400 meters, this high-altitude acrobat sports extra-dense, fluffy plumage to withstand the mountain cold. It brandishes a spectacular, multicolored bill—painted in shades of yellow, red, and black—which it uses to deftly pluck berries while hanging completely upside down. Far from being strict vegetarians, these toucans are also opportunistic predators that will snatch eggs and tree frogs, and they communicate across the canopy using bizarre, high-pitched nasal squeaks that sound hilariously like a squeaky dog toy.

Habitats & Distribution

This species is native to the Andes of South America, with a geographical range extending from southern Colombia through Ecuador to central Peru. Within this montane strip, its distribution is somewhat disjunct, occurring in localized populations along both the eastern and western slopes of the Andean cordillera. Its primary habitat consists of wet, humid montane forests, temperate cloud forests, and forest edges, typically at high elevations ranging between 2,200 and 3,650 meters above sea level. It is frequently found in the canopy and sub-canopy of mature forests characterized by a high abundance of epiphytes, mosses, and bromeliads, occasionally venturing into adjacent secondary growth to forage.

Behaviours & Reproduction

Active primarily in the high-altitude canopy, these birds are typically observed foraging singly, in monogamous pairs, or in small, close-knit family groups of up to six individuals. They maintain a relatively quiet demeanor compared to lowland toucans, communicating through low-pitched grunts, rattles, and rhythmic bill-clicking. While foraging, they travel systematically through the cloud forest, occasionally joining mixed-species feeding flocks to exploit seasonal fruit gluts, though they remain territorial around preferred nesting and roosting sites. During the breeding season, monogamous pairs engage in elaborate courtship rituals characterized by mutual feather-preening, synchronized bill-touching, and courtship feeding, where males present selected fruits to females to strengthen their bond. They nest high above the ground in natural tree cavities or abandoned woodpecker holes, which both partners help clean and modify. Females lay a clutch of two to three white eggs, and both parents share the duties of incubating the eggs and provisioning the altricial, slow-developing chicks until they are ready to fledge.

Diet

The Grey-breasted Mountain-Toucan is primarily a frugivorous bird, feeding on a wide variety of fruits and berries from canopy trees and shrubs, such as those from the nightshade and rose families, in its high-altitude Andean habitat. To supplement its plant-based diet, particularly during the breeding season, this species also opportunistically consumes insects, arthropods, and small vertebrates like frogs, as well as the eggs and nestlings of other birds. An interesting aspect of its dietary behavior is its vital role as a seed disperser; because it swallows fruits whole and later regurgitates or passes the seeds intact, it helps regenerate the cloud forest ecosystem. Furthermore, despite its large and seemingly cumbersome bill, this appendage is actually incredibly lightweight and serves as a highly specialized tool, allowing the toucan to dexterously reach and pluck delicate berries from slender branches that would otherwise be unable to support the bird's weight.

Colors

The Grey-breasted Mountain-Toucan features a dusty blue-grey breast and belly contrasted by a dark olive-brown back and a black crown. It is distinguished by a bright yellow rump, red undertail coverts, and chestnut-tipped tail feathers. Its most striking markings are a vibrant turquoise eye-ring and a colorful bill banded in yellow, red, and black, which serve as high-contrast signals in its misty cloud forest habitat.