Machado, Érika, and Luís Fábio Silveira. 2010. “ Geographical and Seasonal Distributions of the Seedeaters Sporophila Bouvreuil and Sporophila Pileata (aves: Emberizidae) ”. Papéis Avulsos De Zoologia 50 (32): 517-33. https://doi.org/10.1590/S0031-10492010003200001.