Order: Passeriformes | Family: Parulidae | IUCN Status: Least Concern
Age: Adult | Sex: Male | Loc. Lachay, Lima
Age: Immature | Sex: Male | Loc. Southwest Ecuador
Age: Adult | Sex: Male | Loc. Cajamarca, Peru
Age: Adult | Sex: Females | Loc. Cajamarca | Cusco, Peru
Status: The Masked Yellowthroat if fairly common to uncommon in the Marañon Drainage and intermontane valleys at elevations of up to 2700 m. It is uncommon in coastal scrub and edges of woodlands on the west side of the Andes. The Masked Yellowthroat also occurs along the foothill of the Andes in the southeast, but could only be as an Austral migrant. It also occurs in Co, Ec, Br, and Bo.
Name in Spanish: Reinita Equinoccial.
Sub-species: Masked Yellowthroat (Geothlypis aequinoctialis auricularis), Salvin, 1883. Pacific slope of W Ecuador and NW Peru.
(G. a.peruviana )Taczanowski, 1884. Upper Marañón Valley, in NW Peru (probably also in adjacent SE Ecuador).
(G. a. velata) (Vieillot), 1809. SE Peru, N Bolivia and extreme S Amazonian Brazil S.
Meaning of Name: Geothlypis: Gr. Geō, gē= ground, earth and thlupis= unknown small bird, perhaps some sort of finch or warbler. aequinoctialis: L. aequinoctialis, equinoctial= equatorial.

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 03/01/2016.