Order: Passeriformes | Family: Tyrannidae | IUCN Status: Least Concern
Age: Adult | Sex: Unknown | Loc. Amazonian Brazil
Age: Adult | Sex: Unknown | Loc. Amazonian Brazil
Age: Adult | Sex: Unknown | Loc. Amazonian Brazil
Age: Adult | Sex: Unknown | Loc. Southeast Peru
Status: The Euler’s Flycatcher is uncommon and widespread in Amazonia. Most birds in Amazonia north to approximately the Amazon River are Austral migrants expected in Peru during the months of May through October. Birds north of approximately the Amazon River are resident breeders in Amazonia. The Euler’s Flycatcher is known to range up to 1600 m along the east slope of the Andes. It also occurs in Co, Ec, Br, and Bo.
Name in Spanish: Mosquerito de Euler.
Sub-species: Euler’s Flycatcher (Lathrotriccus euleri bolivianus), (J. A. Allen), 1889. S & SE Venezuela, E Ecuador, E Peru, much of Brazil (except N & SE) and NW Bolivia; some possibly migrate to Colombia.
(Lathrotriccus euleri argentinus), (Cabanis), 1868. E Bolivia, N Argentina and Paraguay; migrates N into Amazonia of E Peru and E Brazil.
(Lathrotriccus euleri euleri), (Cabanis), 1868. SE Brazil, NE Argentina and Uruguay; migrates N into Amazonia of NE Peru, Bolivia and Brazil.
Meaning of Name: Lathrotriccus: Gr. lathrios= secret and trikkos= unknown small bird.
euleri: In honor of Carl Hieronymus Euler (1834-1901) Swiss settler in Brazil 1853, Vice-Consul in Rio de Janeiro 1867-1901, amateur ornithologist.

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.