Austral Pygmy Owl (Glaucidium nana) [XC48746]
by Felix Vidoz from Parque Nacional Lanin (Puerto Canoas), Neuquen, Argentina (song)
Austral Pygmy Owl (Glaucidium nana) [XC845418]
by Barry Edmonston from Cartagena, San Antonio, Valpara\u00edso, 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.