Green-headed Tanager

Quick Facts

  • Scientific Name: Tangara seledon
  • Spanish Name: Tangara cabeciverde
  • Family: Thraupidae
  • Known Nicknames: Seven-colored Tanager
  • Average Length: 13.5 cm / 5.3 in
  • Average Weight: 18–22 g / 0.63–0.78 oz
  • Wingspan: N/A
  • Key Feature: Brilliant green head and turquoise-blue underparts with a yellow-orange rump and black mask
  • Primary Diet: Primarily Frugivore, also insectivorous
  • Range: Southeastern Brazil, eastern Paraguay, and northeastern Argentina
  • Habitat: Atlantic Forest, humid lowland and montane forests, forest edges, and secondary growth
  • Social Structure: Social, often in mixed-species flocks
  • Nesting/Breeding: Open cup nest built in a tree fork
  • Conservation Status: Least Concern (LC)
  • Population Trend: Decreasing

The Green-headed Tanager (*Tangara seledon*) is a dazzling jewel of Brazil’s Atlantic Forest, instantly recognizable by its electric emerald head that contrasts sharply with a deep violet-black throat and back. Its underparts are a brilliant turquoise blue, while the rump and wings flash a fiery orange and yellow, creating a living mosaic of tropical color. This small, active bird is a master of mixed-species foraging flocks, often seen acrobatically plucking fruit and insects from the canopy. A special feature is its ability to thrive in both pristine forests and degraded secondary habitats, making it a resilient ambassador for its threatened ecosystem.

Fun Facts

The Green-headed Tanager has a peculiar fondness for bathing in wet leaves rather than open water, often seen rubbing against dew-covered foliage to clean itself. Its bright green and blue plumage is not due to pigments but to microscopic feather structures that scatter light, creating an iridescent effect that shifts with the angle. This species is a master of "anting," a quirky behavior where it rubs ants onto its feathers; the formic acid secreted by the ants acts as a natural insecticide and fungicide. During courtship, males perform a comical "hop-and-flutter" dance, bouncing between branches while fanning their tails to reveal hidden patches of yellow on their rumps, a signal of fitness to potential mates.

Habitats & Distribution

The Green-headed Tanager inhabits humid forests, including primary and secondary Atlantic Forest, as well as forest edges, clearings, and nearby plantations. It is commonly found in the canopy and subcanopy of these environments, often in association with mixed-species flocks. Its geographical range is restricted to southeastern Brazil, extending from southern Bahia and Minas Gerais south through Espírito Santo, Rio de Janeiro, and São Paulo into northeastern Paraná. It also occurs in adjacent areas of eastern Paraguay and extreme northeastern Argentina (Misiones).

Behaviours & Reproduction

These birds are highly social, typically moving through the forest canopy in small, noisy flocks of 6 to 12 individuals, often alongside other tanager species. Their mating system is monogamous, with pairs forming strong bonds that may persist across multiple breeding seasons. Courtship involves the male performing a distinctive display, where he fluffs his plumage, droops his wings, and sways his body while singing softly to the female. The nest is a cup-shaped structure woven from plant fibers and moss, usually placed in a tree fork or among epiphytes. A unique reproductive strategy is cooperative breeding; while the primary pair incubates the clutch of two to three eggs, other adults from the flock, often previous offspring, assist in feeding the chicks and defending the territory. This alloparental care increases fledgling survival rates in their dense, competitive Atlantic Forest habitat.

Diet

The Green-headed Tanager is primarily frugivorous, with fruits and berries making up the bulk of its diet, though it also consumes a significant amount of insects, spiders, and other small arthropods, especially during the breeding season to provide protein for its chicks. An interesting dietary fact is that it frequently forages in mixed-species flocks, often following army ant swarms to catch insects flushed by the ants, and it has been observed eating flower nectar and buds as a supplemental energy source. Additionally, this tanager is known to feed on the fruits of the Brazilian pepper tree and other introduced plants, showing a degree of dietary adaptability, and it often hangs upside-down acrobatically to reach hidden prey or fruit.

Colors

The Green-headed Tanager has a bright emerald-green head, throat, and chest, contrasting with a deep blue belly and a yellow-orange rump and lower back. Its wings and tail are black with vivid blue and green edging, while a narrow black mask runs from the bill through the eye. There are no camouflage adaptations; its bold, multicolored plumage is highly conspicuous in the forest canopy.