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 Passerimorphae Sibley et al., 1988
Order Ciconiiformes Bonaparte, 1854
Suborder Ciconii
see Suborder Ciconiae Bonaparte, 1854
Infraorder Falconides Sharpe, 1874
Parvorder Accipitrida
see Superfamily Accipitroidea Vieillot, 1816
Family Accipitridae Vieillot, 1816 - secretary bird, osprey, kites, hawks and eagles
Subfamily Accipitrinae Vieillot, 1816 - hawks, eagles
Genus Spilornis Gray, 1840
Spilornis minimus Hume, 1873 - Nicobar serpent-eagle
see Spilornis cheela minimus Hume, 1873
Spilornis minimus minimusᵀ - small serpent-eagle
see Spilornis cheela minimus Hume, 1873