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 Passeres Linnaeus, 1758 see Suborder Passeres (C. Linnaeus, 1758) C. Linnaeus, 1766
             Genus Parus Linnaeus, 1758
               01 Parus cristatus Linnaeus, 1758
               02 Parus major Linnaeus, 1758
               03 Parus americanus Linnaeus, 1758 see Parula americana (C. Linnaeus, 1758)
               04 Parus caeruleus Linnaeus, 1758
               05 Parus ater Linnaeus, 1758
               06 Parus palustris Linnaeus, 1758
               07 Parus caudatus Linnaeus, 1758 see Aegithalos caudatus (C. Linnaeus, 1758)
               08 Parus biarmicus Linnaeus, 1758 see Panurus biarmicus (C. Linnaeus, 1758)
               09 Parus pipra Linnaeus, 1758 see Pipra pipra (C. Linnaeus, 1758)
               10 Parus erythrocephalus Linnaeus, 1758 see Pipra erythrocephala (C. Linnaeus, 1758)
               11 Parus aureola Linnaeus, 1758 see Pipra aureola (C. Linnaeus, 1758)
               12 Parus cela Linnaeus, 1758 see Cacicus cela (C. Linnaeus, 1758)