Palabras claves: Andes, Bird systematics, ECUADOR, hybridization, Passerellidae, Population barriers, speciation, Speciation barriers, Tumbes-Chocó
Autores: Avendaño J.E., Bird B., Elisa Bonaccorso, Fuchs J., Juan Carlos Sánchez-Nivicela, Manuel Sánchez-Nivicela, Torres A.