PDFArxivat 2013-06-05 a Wayback Machine. Melvin Gastañaga Corvacho, Ross MacLeod, Daniel M. Brooks i Bennett Hennessey (2011). Distinctive morphology, ecology, and first vocal descriptions of Sira Curarrow (Pauxi [unicornis] koepckeae): Evidence for species rank. Ornitologia Neotropical 22 (267–279).
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PDFArxivat 2013-06-05 a Wayback Machine. Melvin Gastañaga Corvacho, Ross MacLeod, Daniel M. Brooks i Bennett Hennessey (2011). Distinctive morphology, ecology, and first vocal descriptions of Sira Curarrow (Pauxi [unicornis] koepckeae): Evidence for species rank. Ornitologia Neotropical 22 (267–279).