Imperium naturæ C. Linnaeus, 1758 - nature
Status: extant
   Mundus Plinius - physical world
  Status: extant
     naturalia - natural bodies
    Status: extant
       Regnum Animale C. Linnaeus, 1758 - animal kingdom see Kingdom Animalia Linnaeus, 1758
      Status: extant
         Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
        Status: extant
           Order Picae Linnaeus, 1758 see Parvclass Picae (C. Linnaeus, 1758)
          Status: extant
             Genus Alcedo Linnaeus, 1758 - little kingfisher
            Status: extant
               1 Alcedo ispida Linnaeus, 1758
              Status: extant
               2 Alcedo erithaca Linnaeus, 1758 see Ceyx erithaca (C. Linnaeus, 1758)
              Status: extant
               3 Alcedo alcyon Linnaeus, 1758 see Megaceryle alcyon (C. Linnaeus, 1758)
              Status: extant
               4 Alcedo todus Linnaeus, 1758 see Todus todus (C. Linnaeus, 1758)
              Status: extant
               5 Alcedo smyrnensis Linnaeus, 1758 see Halcyon smyrnensis (C. Linnaeus, 1758)
              Status: extant
               6 Alcedo rudis Linnaeus, 1758 see Ceryle rudis (C. Linnaeus, 1758)
              Status: extant
               7 Alcedo dea Linnaeus, 1758 see Galbula dea (C. Linnaeus, 1758)
              Status: extant