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 Grallae Linnaeus, 1758
          Status: extant
             Genus Recurvirostra Linnaeus, 1758
            Status: extant
               Recurvirostra avosetta Linnaeus, 1758 - pied avocet
              Status: extant