Neornithes Gadow, 1893 - living birds
Neognathae Pycraft 1900
see Cohort Neognathae Pycraft, 1900
Neoaves Sibley et al. 1988
see Subcohort Neoaves Sibley et al., 1988
[Order] Strigiformes Wagler, 1830 - owls
Family Strigidae Vigors, 1825 - owls
Subfamily Surniinae del Hoyo et al., 2014
Genus Aegolius Kaup, 1829
Aegolius harrisii (Cassin, 1849) - buff-fronted owl
1 Aegolius harrisii harrisii (Cassin, 1849)
2 Aegolius harrisii iheringi (Sharpe, 1899)
3 Aegolius harrisii dabbenei Olrog, 1979