Order: Passeriformes | Family: Tyrannidae | IUCN Status: Least Concern
Age: Adult | Sex: Male | Loc. Urubamba, Cuzco
Age: Adult | Sex: Female | Loc. Urubamba | Cuzco
Age: Adult | Sex: Male | Loc. Pariahuanca, Junin
Age: Adult | Sex: Female | Loc. Condebamba, Cajamarca
Status: The White-winged Black-Tyrant is uncommon in two disjunct populations in humid montane scrub and forest edges on the east slope of the Andes at elevations ranging between 1800-2700 m. It also occurs in Br and Bo.
Name in Spanish: Viudita-Negra de Ala Blanca.
Sub-species: White-winged Black-Tyrant (Knipolegus aterrimus heterogyna), Berlepsch, 1907. N Peru (Marañón Valley from Cajamarca S to Ancash).
(Knipolegus aterrimus anthracinus), Cabanis, 1859.
Meaning of Name: Knipolegus: Gr. knips, knipos= insect and lego= to pick. aterrimus: L. ater= black, aterrimus= very black, blackest.

References:
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- Species range based on: Schulenberg, T. S., D. F. Stotz, and L. Rico. 2006. Distribution maps of the birds of Peru, version 1.0. Environment, Culture & Conservation (ECCo). The Field Museum. http://fm2.fieldmuseum.org/uw_test/birdsofperu on 03/01/2017.