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2. Junge, G. C. A., and G. F. Mees (1961) The avifauna of Trinidad and Tobago. E. J. Brill, Leiden, Netherlands.
3. ffrench, R. P. (2012). A Guide to the Birds of Trinidad and Tobago. Third edition. Cornell University Press, Ithaca, NY, USA.
4. Haverschmidt, F., and G. F. Mees (1994). Birds of Suriname. Second edition. Vaco Uitgeversmaatschappij, Paramaribo, Suriname.
5. Berlepsch, H. Graf von and Ihering, H. von (1885). Die Vögel der Umgegend von Taquara do Mundo Novo, Prov. Rio Grande do Sul. Zeitschr. Gesam. Orn. 2(2): 97-184. In German.