The white-winged black tyrant (Knipolegus aterrimus) is a species of bird in the family Tyrannidae. It has often included the Sao Francisco black tyrant (K. franciscanus) as a subspecies. It is found in Argentina, Bolivia, Chile, Paraguay, Peru, and Uruguay. Its natural habitats are subtropical or tropical moist montane forests, subtropical or tropical moist shrubland, and heavily degraded former forest.
The white-winged black tyrant (Knipolegus aterrimus) is a species of bird in the family Tyrannidae. It has often included the Sao Francisco black tyrant (K. franciscanus) as a subspecies. It is found in Argentina, Bolivia, Chile, Paraguay, Peru, and Uruguay. Its natural habitats are subtropical or tropical moist montane forests, subtropical or tropical moist shrubland, and heavily degraded former forest.
