Order: Passeriformes | Family: Thamnophilidae | IUCN Status: Least Concern
Age: Adult | Sex: Male | Loc. Madre de Dios Region
Age: Adult | Sex: Female | Loc. Madre de Dios Region
Age: Adult | Sex: Male | Loc. Parana, Brazil
Age: Adult | Sex: Female | Loc. Madre de Dios Region
Status: The Plain-throated Antwren is uncommon and widespread in Amazonia where it is known to range up to 700 m along the foothill of the Andes. It also occurs in Co, Ec, Br, and Bo.
Name in Spanish: Hormiguerito de Garganta Llana.
Sub-species: Plain-throated Antwren (Isleria hauxwelli suffusa), (J. T. Zimmer), 1932. SE Colombia (from Meta S along the base of the Andes, E to E Vaupés), extreme NW Amazonian Brazil (W of R Japurá), E Ecuador and NE Peru (Loreto and Amazonas N of R Marañón).
(Isleria hauxwelli hauxwelli), (P. L. Sclater), 1857. E Peru (S of R Amazon and R Marañón), SW & SC Amazonian Brazil (E to R Xingu in Pará, S to Acre and SW & N Mato Grosso) and NW & NE Bolivia (Pando, Beni, La Paz, NE Santa Cruz).
Meaning of Name: Isleria: In honor of Morton L. Isler (b. 1929) and Phyllis R. Isler (b. 1931) US ornithologists. hauxwelli: In honor of John Hauxwell (fl. 1868) English collector in Peru and Brazil.

Voice
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.
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