Austral Pygmy Owl (Glaucidium nana) [XC53484]
by Felix Vidoz from PN Lago Puelo, Chubut, Argentina (song)
Austral Pygmy Owl (Glaucidium nana) [XC48745]
by Bernabe Lopez-Lanus from Parque Nacional Lanin (Lago Quillen)_Neuquen, 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.