Order: Passeriformes | Family: Tyrannidae | IUCN Status: Least Concern
Age: Adult | Sex: Unknown | Loc. Afluente, San Martin
Age: Adult | Sex: Unknown | Loc. Northwest Peru
Age: Adult | Sex: Unknown | Loc. Sandoval Lake, Madre de Dios
Age: Adult | Sex: Unknown | Loc. Puno|Cuzco
Status: The Yellow-Olive Flycatcher is common to fairly common but local in disjunct populations in Amazonia, the east slope of the Andes, northwest Peru, and extreme southeast Peru. Andean populations are known to range between 1000-2400 m. It also occurs in Co, Ec, Br, and Bo.
Name in Spanish: Pico-Ancho Azufrado.
Sub-species: Yellow-olive Flycatcher (Tolmomyias sulphurescens aequatorialis), (Berlepsch and Taczanowski) 1884. W Ecuador and NW Peru (Tumbes, Piura).
(Tolmomyias sulphurescens peruvianus), (Taczanowski), 1875. SE Ecuador and N & C Peru (Amazonas, S San Martín, E Pasco, Junín).
(Tolmomyias sulphurescens insignis), J. T. Zimmer, 1939. NE Peru (lower R Ucayali, in Loreto) and NW Brazil (R Juruá E to R Jamundá and R Madeira).
(Tolmomyias sulphurescens inornatus), J. T. Zimmer, 1939. SE Peru (N Puno).
Meaning of Name: Tolmomyias: Gr. tolma, tolmes= courage, boldness muia= fly and piazo= to seize, myias= flycatcher. sulphurescens: L. sulphur, sulphuris= sulphur, sulphurescens, sulphurescentis= becoming sulphurous.

References:
-
- 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.