Imperium naturæ C. Linnaeus, 1758 - nature
   Mundus Plinius - physical world
     naturalia - natural bodies
       Regnum Animale C. Linnaeus, 1758 - animal kingdom see Kingdom Animalia Linnaeus, 1758
         Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
           Order Accipitres Linnaeus, 1758 see Suborder Accipitres (C. Linnaeus, 1758)
             40 Genus Vultur Linnaeus, 1758
             41 Genus Falco Linnaeus, 1758
             42 Genus Strix Linnaeus, 1758
             43 Genus Lanius Linnaeus, 1758