Avifaunal surveys of the upper Apurímac River Valley, Ayacucho and Cuzco Departments, Peru: New distributional records and biogeographic, taxonomic, and conservation implications PA Hosner, MJ Andersen, MB Robbins, A Urbay-Tello, L Cueto-Aparicio, ... The Wilson Journal of Ornithology 127 (4), 563-581, 2015 | 17 | 2015 |