Knipolegus

Knipolegus is the genus of black-tyrants, bird in the Tyrannidae family.

It contains the following species :
 * Cinereous Tyrant, Knipolegus striaticeps
 * Hudson's Black-tyrant, Knipolegus hudsoni
 * Amazonian Black-tyrant, Knipolegus poecilocercus
 * Andean Tyrant, Knipolegus signatus
 * Plumbeous Tyrant, Knipolegus cabanisi
 * Blue-billed Black-tyrant, Knipolegus cyanirostris
 * Rufous-tailed Tyrant, Knipolegus poecilurus (also considered to be in the monotypic genus Eumyiobius)
 * Riverside Tyrant, Knipolegus orenocensis
 * White-winged Black-tyrant, Knipolegus aterrimus
 * Brazilian Black-tyrant or Caatinga Black-tyrant, Knipolegus franciscanus (often considered a subspecies of K. aterrimus.)
 * Velvety Black-tyrant, Knipolegus nigerrimus
 * Crested Black-tyrant, Knipolegus lophotes