- Order: Passeriformes
- Family: Tyrannidae
Campos do Jordão, São Paulo, Brazil; 25 August 2010 © Martjan Lammertink
The Blue-billed Black-Tyrant is a flycatcher of forest and wet woodlands in southeastern South America. The species is distributed as a breeder from southeastern Brazil south through Uruguay into northeastern Argentina, though some birds move north in the austral winter into further western areas of Brazil as well as Paraguay. Though there are other black-tyrants in its range, the Blue-billed Black-Tyrant is the only one that lacks obvious white wing markings (males). It is typically silent, and forages by making brief sallies into the air and vegetation after insects.
Johnson, Tom. 2010. Blue-billed Black-Tyrant (Knipolegus cyanirostris), Neotropical Birds Online (T. S. Schulenberg, Editor). Ithaca: Cornell Lab of Ornithology; retrieved from Neotropical Birds Online: http://neotropical.birds.cornell.edu/portal/species/overview?p_p_spp=461356