Austral Pygmy Owl (Glaucidium nana) [XC51742]
by Felix Vidoz from PN Lanin-Lago Quillen, Neuquen, Argentina (song)
Austral Pygmy Owl (Glaucidium nana) [XC60061]
by Sofia Wasylyk from Puyehue, X 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.