Guadagnin, Demétrio L., João C. Dotto, and Maria I. Burger. “Ocorrencia Da Marreca Cabocla Dendrocygna Autumnalis No Noroeste Do Río Grande Do Sul, Brasil”. El Hornero 14, no. 1-2 (July 1, 1995): 74–75. Accessed August 25, 2025. https://elhornero.avesargentinas.org.ar/home/article/view/1037.