Argentina, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Panama, Paraguay, Peru, Suriname, Trinidad and Tobago, Uruguay (B), Venezuela.
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is unknown (2010).
Masked Yellowthroat (Geothlypis aequinoctialis) [XC713435]
by Robson Silva e Silva from Isla La nueva, Mocagua, Puerto Nari\u00f1o, Amazonas., Colombia (song)
Masked Yellowthroat (Geothlypis aequinoctialis) [XC223385]
by Ricardo Gagliardi from Laguna Unare, Anzoategui, Venezuela (song)
Subspecies
Subspecies geographically discrete; chiriquensis sometimes considered a separate species, and recently suggested, on basis of mitochondrial DNA, to be closer to G. subflava than to other forms currently included herein. In one recent study, nominate subspecies, chiriquensis, auricularis and velata found to be genetically distinct from one another; vocal differences also apparent. They may be better treated as four separate species, with peruviana then a subspecies of auricularis; some authors have suggested that peruviana differs from auricularis in its song, and that it, too, may merit elevation to species rank. Further research is required.
The following 5 subspecies are recognised:
chiriquensis (Gmelin, 1789) - Southern Costa Rica and adjacent south-western Panama. Considered by some authors to be a distinct species, Chiriqui Yellowthroat (Geothlypis chiriquensis).
aequinoctialis (Gmelin, 1789) - Northern Colombia and Venezuela south to northern Amazonian Brazil. Also Trinidad.
auricularis Salvin, 1883 - Western Ecuador, western Peru. Considered by some authors to be a distinct species, Black-lored Yellowthroat (Geothlypis auricularis).
peruviana Taczanowski, 1884 - Upper Marañón Valley, in north-western Peru (probably also in adjacent south-eastern Ecuador). Considered by some authors to be a distinct species, Black-lored Yellowthroat (Geothlypis auricularis). Considered by some authors to be a subspecies of Black-lored Yellowthroat (Geothlypis auricularis).
velata (Vieillot, 1809) - South-eastern Peru, northern Bolivia and southern Amazonian Brazil to Argentina and Uruguay. Considered by some authors to be a distinct species, Southern Yellowthroat (Geothlypis velata).
BirdLife International Species Factsheet