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 Falconida
see Superfamily Falconoidea Vigors, 1824
Family Falconidae Vigors, 1824 - falcons, caracaras
Genus Polyborus Vieillot, 1816, nom. illeg.
see Genus Caracara Merrem, 1826
‡Polyborus lutosus Ridgway, 1876 - Guadalupe caracara
see Caracara lutosa (Ridgway, 1876)