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 Passeriformes Linnaeus, 1758
             Suborder Passeri see Suborder Passeres (C. Linnaeus, 1758) C. Linnaeus, 1766
               Parvorder Passerida (C. Linnaeus, 1758) Sibley et al., 1988
                 Superfamily Passeroidea
                   Family Passeridae Rafinesque, 1815 - sparrows, snowfinches and allies
                     Subfamily Estrildinae
                       Tribe Estrildini see Family Estrildidae Bonaparte, 1850
                         Genus Pyrenestes Swainson, 1837
                           Pyrenestes ostrinus (Vieillot, 1805)
                             1 Pyrenestes ostrinus ostrinusᵀ (Vieillot, 1805)
                             2 Pyrenestes ostrinus rothschildi see Pyrenestes ostrinus ostrinus (Vieillot, 1805)
                             3 Pyrenestes ostrinus frommi see Pyrenestes ostrinus ostrinus (Vieillot, 1805)
                             4 Pyrenestes ostrinus maximus see Pyrenestes ostrinus ostrinus (Vieillot, 1805)