Knipolegus aterrimus
The White-winged Black Tyrant (Knipolegus aterrimus) is a striking member of the Tyrannidae family, instantly recognizable in its male form. Males are entirely glossy black, often appearing velvety, with prominent white wing patches that are most conspicuous in flight or during display, contrasting sharply with their dark plumage. These patches measure roughly 3-4 cm in length. Females, in contrast, exhibit significant variation, typically appearing duller, brownish-black to sooty gray above,...
Found in open woodlands, scrublands, thorny chaco, dry forests, and montane slopes, often preferring areas with rocky outcrops or near rivers, from lowlands up to 3000 meters in elevation.
Primarily insectivorous, feeding on a variety of flying insects such as flies, beetles, wasps, and butterflies, caught through aerial sallies; occasionally supplements its diet with small fruits.
This diurnal flycatcher is often observed perching conspicuously on exposed branches, wires, or rocky outcrops, providing excellent views. Its primary foraging strategy is aerial hawking: it sally-rushes from its perch to snatch flying insects mid-air with remarkable agility, returning to the sam...
The White-winged Black Tyrant has a wide distribution across central and southern South America. Its breeding range extends through Bolivia, Paraguay, Argentina, and Uruguay, with isolated populations also found in southern Peru. While largely resident throughout much of its range, austral popula...
Least Concern
- The "white-winged" aspect of its name is most accurately observed when the male bird is in flight or actively displaying, as the patches can be hidden at rest. - It belongs to the Tyrannidae family, which is the most diverse and species-rich bird family in the entire Americas. - Despite its "ty...