Reappraisal of Koepcke's Screech Owl Megascops koepckeae and description of a new subspecies

Jon Fjeldså, Jan Baiker, Gunnar Engblom, Irma Franke, David Geale, Niels Kaare Krabbe, David F. Lane, Miguel Lezama, Fabrice Schmitt, Robert S. R. Williams, Joaquin Ugarte-Núñez, Virgilio Yabar, Ramiro Yábar