Hosner, Peter A.; Andersen, Michael J.; Robbins, Mark B.; Urbay-Tello, Abraham; Cueto-Aparicio, Luis; Verde-Guerra, Karen; Sánchez-González, Luis A.; Navarro-Sigüenza, Adolfo G.; Boyd, Roger L. (Dec 2015). Avifaunal Surveys of the Upper Apurímac River Valley, Ayacucho and Cuzco Departments, Peru: New Distributional Records and Biogeographic, Taxonomic, and Conservation Implications. The Wilson Journal of Ornithology(амер.). 127 (4): 563—581. doi:10.1676/14-178.1. ISSN1559-4491.
Hosner, Peter A.; Andersen, Michael J.; Robbins, Mark B.; Urbay-Tello, Abraham; Cueto-Aparicio, Luis; Verde-Guerra, Karen; Sánchez-González, Luis A.; Navarro-Sigüenza, Adolfo G.; Boyd, Roger L. (Dec 2015). Avifaunal Surveys of the Upper Apurímac River Valley, Ayacucho and Cuzco Departments, Peru: New Distributional Records and Biogeographic, Taxonomic, and Conservation Implications. The Wilson Journal of Ornithology(амер.). 127 (4): 563—581. doi:10.1676/14-178.1. ISSN1559-4491.