Johnson, Kevin P.; de Kort, Selvino; Dinwoodey, Karen, Mateman, A. C.; ten Cate, Carel; Lessells, C. M. & Clayton, Dale H. (2001): A molecular phylogeny of the dove genera Streptopelia and Columba. The Auk118(4): 874–887. doi:10.1642/0004-8038(2001)118[0874:AMPOTD2.0.CO;2] PDF fulltext
Krabbe, Niels; Flórez, Pablo; Suárez, Gustavo; Castaño, José; Arango, Juan David & Duque, Arley (2006) The birds of Páramo de Frontino, western Andes of Colombia. Ornitologıá Colombiana4: 39–50 [English with Spanish abstract]. PDF fulltextArchived 2008-08-20 at the Wayback Machine
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Johnson, Kevin P.; de Kort, Selvino; Dinwoodey, Karen, Mateman, A. C.; ten Cate, Carel; Lessells, C. M. & Clayton, Dale H. (2001): A molecular phylogeny of the dove genera Streptopelia and Columba. The Auk118(4): 874–887. doi:10.1642/0004-8038(2001)118[0874:AMPOTD2.0.CO;2] PDF fulltext
web.archive.org
Krabbe, Niels; Flórez, Pablo; Suárez, Gustavo; Castaño, José; Arango, Juan David & Duque, Arley (2006) The birds of Páramo de Frontino, western Andes of Colombia. Ornitologıá Colombiana4: 39–50 [English with Spanish abstract]. PDF fulltextArchived 2008-08-20 at the Wayback Machine