Class Aves Linnaeus, 1758 - birds
see Subclass Aves Linnaeus, 1758
Subclass Neornithes Gadow, 1893
see Clade Neornithes Gadow, 1893
Infraclass Neoaves Sibley et al., 1988
see Subcohort Neoaves Sibley et al., 1988
Parvclass Passerae
see Superorder Passerimorphae Sibley et al., 1988
Superorder Strigimorphae
see Superorder Falconimorphae Seebohm, 1890
Order Strigiformes Wagler, 1830 - owls
Suborder Strigi
see Order Strigiformes Wagler, 1830
Parvorder Strigida
see Order Strigiformes Wagler, 1830
Family Strigidae Vigors, 1825 - owls
Genus Nyctea Stephens, 1826
Nyctea scandiaca (C. Linnaeus, 1758) - snowy owl