Austral Pygmy Owl (Glaucidium nana) [XC537778]
by Dante Buzzetti from Parque Nacional Vicente P\u00e9rez Rosales, Puerto Varas, Llanquihue, Los Lagos, Chile (call, aggressive call)
Austral Pygmy Owl (Glaucidium nana) [XC60060]
by Alvaro Jaramillo from Cerro Nielol, IX Region, Chile (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.