Tityra semifasciata (Masked Tityra) (15194950735)

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Description: To what extent geographic isolation imposed by barriers such as The Andes, the isthmus of Panama and Tehuantepec has contributed to the population divergence of this bird in comparison to other groups of Neotropical birds? Check it out in The Drivers of Tropical Speciation published in Nature dx.doi.org/10.1038/nature13687. Date: 4 November 2010, 10:53. Source: Tityra semifasciata (Masked Tityra). Author: Andres Cuervo.