Systema naturæ - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Regnum Animale nom. inval. - animal kingdom see Kingdom Animalia Linnaeus, 1758
         Class Aves Plinius, nom. inval. - birds see Class Aves Linnaeus, 1758
           Order Accipitres Plinius, nom. inval. see Order Accipitres Linnaeus, 1758
             Genus Strix nom. inval. see Genus Strix Linnaeus, 1758
               1 Bubo Plinius, nom. inval.
               2 Otus Plinius, nom. inval.
               3 Noctua Plinius, nom. inval.
               4 Ulula nom. inval.