Overview
The Swallow-tailed Cotinga (Phibalura flavirostris) is a strikingly charismatic and visually arresting passerine bird endemic to the threatened montane Atlantic Forest biome of southeastern South America. Renowned for its extraordinarily long, deeply forked, swallow-like black tail and vivid patchwork plumage of yellow, blue-black, and white barring, this high-canopy specialist perches prominently atop emergent treetops. Exhibiting seasonal altitudinal migrations between humid montane cloud forests and warmer lowland valleys, it serves an indispensable ecological role as a primary seed disperser for montane epiphytes and mistletoe species.
Biology and Physical Characteristics
Phibalura flavirostris exhibits distinct plumage architecture tailored for rapid aerial foraging and high-canopy visibility. Adult males boast a glossy black crown bordered by a bright ruby-red crest patch that can be erected during courtship displays. The face and throat are washed in bright golden-yellow, contrasting sharply with a boldly barred black-and-white breast and an ivory underbelly. Its signature biological trait is its long, deeply scissor-forked tail, which provides exceptional aerodynamic maneuverability when swooping into fruiting canopies or hawking flying insects from the air. Its bill is short, stout, and bright lemon-yellow, engineered to pluck, process, and swallow sticky berries whole.
Behavior and Ecology
Swallow-tailed cotingas are gregarious, active foragers that often move in small, boisterous family groups or join mixed-species frugivorous flocks. They spend much of the morning perched on high, exposed dead branches, sallying forth in swift, undulating flights to harvest wild fruits, especially mistletoe berries (Phoradendron) and Melastomataceae drupes. After digesting the sticky pulp, they regurgitate intact seeds onto tree limbs, promoting the germination and canopy distribution of parasitic and epiphytic flora. Breeding occurs in late spring, with females building cup-shaped nests on horizontal moss-covered tree boughs, laying two speckled eggs that both parents tend diligently.
Conservation and Human Impact
The swallow-tailed cotinga is categorized as Near Threatened on the IUCN Red List due to severe habitat fragmentation across the Atlantic Forest, which has been reduced to less than 12 percent of its historical extent by agricultural clearing, urbanization, and cattle ranching. Because the bird relies on distinct seasonal elevational zones, deforestation along foothill corridors disrupts its annual altitudinal migration cycles. Protecting contiguous forest corridors in Serra do Mar and Itatiaia National Park in Brazil is essential to sustaining viable breeding populations.
Interesting Factoid
Despite being a cotinga, the swallow-tailed cotinga has a long, scissor-like forked tail that looks so much like a barn swallow that early 19th-century ornithologists originally misclassified it as a member of the swallow family.
Last updated: October 2026