Buainain, Nelson, Guilherme Renzo Rocha Brito, Daniel Honorato Firme, Daniel Monteiro Figueira, Marcos A. Raposo, and Claydson Pinto de Assis. 2016. “Taxonomic Revision of Saffron-Billed Sparrow Arremon flavirostris Swainson, 1838 (Aves: Passerellidae) With Comments on Its Holotype and Type Locality”. Zootaxa 4178 (4). Auckland, New Zealand:547–567. https://doi.org/10.11646/zootaxa.4178.4.6.