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 funereus (C. Linnaeus, 1758) - boreal owl Aegolius funereus caucasicus (Buturlin, 1907)