Lopes, L.E. 2017. Morphological variation of the Long-tailed Reed Finch Donacospiza albifrons (Vieillot, 1817) (Aves: Thraupidae). Zootaxa. 4329, 3 (Oct. 2017), 201–218. DOI:https://doi.org/10.11646/zootaxa.4329.3.1.