Black-goggled Tanager

Quick Facts

  • Scientific Name: Trichothraupis melanops
  • Spanish Name: Tangara de anteojos negros
  • Family: Thraupidae
  • Known Nicknames: Black-goggled Tanager, Black-goggled Mountain Tanager
  • Average Length: 16–18 cm / 6.3–7.1 in
  • Average Weight: 25–35 g / 0.88–1.23 oz
  • Wingspan: N/A
  • Key Feature: Conspicuous black mask (goggle) around the eye, contrasting with yellow crown and olive upperparts
  • Primary Diet: Primarily Frugivore and Insectivore
  • Range: Southeastern Brazil, eastern Paraguay, and northeastern Argentina
  • Habitat: Montane and lowland Atlantic Forest, forest edges, and secondary growth
  • Social Structure: Often found in pairs or small family groups, sometimes joining mixed-species flocks
  • Nesting/Breeding: Cup-shaped nest built in tree forks or shrubs
  • Conservation Status: Least Concern (LC)
  • Population Trend: Stable

The Black-goggled Tanager (*Trichothraupis melanops*) is a striking bird of South America’s Atlantic Forest, named for the bold, jet-black mask that encircles its eyes like a pair of dramatic goggles. This medium-sized tanager is otherwise a study in contrast: males boast a rich, olive-green body with a bright yellow crown and throat, while females are more subdued with a grayish head and olive tones. Its most unique feature is a subtle, bristly tuft of feathers at the base of the bill, which it uses to sweep aside leaf litter while foraging—a specialized feeding technique that sets it apart from other tanagers. Often seen in mixed-species flocks, this active bird’s vivid colors and industrious leaf-tossing behavior make it a lively and memorable resident of the understory.

Fun Facts

Despite its striking black-and-yellow facial pattern, the Black-goggled Tanager is a notorious kleptoparasite, often aggressively stealing food from other birds like flycatchers and even larger tanagers. It’s also a master of the “leaf-scratch,” hopping backwards along a branch to flip dead leaves with its feet and snatch hidden insects—a behavior more typical of ground-dwelling antbirds. Males will sometimes perform a bizarre, slow-motion wing-flutter display to females, where they droop their wings and tremble like they’re shivering, all while emitting a faint, high-pitched squeak.

Habitats & Distribution

This tanager occupies the understory and mid-levels of humid Atlantic Forest, from dense primary growth to mature secondary woodlands and forest edges, often near bamboo thickets. It is found from sea level up to around 1,800 meters in elevation. Its geographical range spans eastern Paraguay, northeastern Argentina (Misiones Province), and a broad swath of southeastern Brazil from southern Bahia south to northern Rio Grande do Sul.

Behaviours & Reproduction

The Black-goggled Tanager is primarily monogamous during the breeding season, forming stable pairs that defend small territories. Pairs engage in mutual preening and close following, with males performing short, fluttering display flights to reinforce the bond. Socially, they are often seen in mixed-species foraging flocks outside of breeding, but pairs remain cohesive within these groups. Nests are cup-shaped, built by the female in dense foliage, typically 1-3 meters above ground. Clutches consist of 2-3 eggs, which the female incubates alone for about 13-14 days, while the male provides food and guards the nest. Both parents feed the chicks through fledging, which occurs around 15-17 days after hatching. A unique reproductive strategy is their use of concealed, well-camouflaged nesting sites to reduce predation, and they occasionally reuse successful nest locations in subsequent years. No cooperative breeding or extra-pair copulations have been documented in this species.

Diet

The Black-goggled Tanager is primarily a frugivore, with berries and small fruits making up the bulk of its diet, but it is also an opportunistic insectivore that actively hunts arthropods like beetles, ants, and caterpillars, especially during the breeding season to feed its young. A fascinating aspect of its feeding behavior is its role as a regular follower of army ant swarms in the Atlantic Forest, where it gleans insects and spiders flushed by the ants, often joining mixed-species foraging flocks to maximize feeding efficiency. Additionally, it occasionally supplements its diet with nectar from flowers, showcasing a flexible, omnivorous foraging strategy that adapts to seasonal food availability.

Colors

The Black-goggled Tanager has a striking black mask that extends from the bill through the eye and onto the cheek, contrasting sharply with a pale yellow crown and a mostly olive-green body. Its wings and tail are darker brownish-olive, with a subtle yellowish wing patch, while the underparts are paler yellowish-olive. This bold facial pattern, which gives the bird its name, serves as disruptive camouflage against dappled forest light, breaking up the head’s outline. The male has a more vivid yellow crown than the female, who has a duller, brownish-olive head with a less defined mask.