Austral Pygmy Owl (Glaucidium nana) [XC973]
by Bernabe Lopez-Lanus from Reserva Nacional Altos de Lircay, VII Region., Chile (song)
Austral Pygmy Owl (Glaucidium nana) [XC413680]
by Francisco Rivas Fuenzalida from Estancia la Ascensi\u00f3n, Lago Buenos Aires, Santa Cruz, Argentina (song)
Subspecies
Considered by some authors to form superspecies with Ferruginous Pygmy-Owl (Glaucidium brasilianum), Tucuman Pygmy-Owl (Glaucidium tucumanum) and Peruvian Pygmy-Owl (Glaucidium peruanum). Sometimes treated as subspecies of Ferruginous Pygmy-Owl (Glaucidium brasilianum), but apparently some subtle differences in vocalizations exist. Recently shown to differ also in DNA.