Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       [Order] Apodiformes Peters, 1940 - swifts
         Family Trochilidae Vigors, 1825 - hummingbirds
           Subfamily Trochilinae Jardine, 1833 - typical hummingbirds
             Genus Haplophaedia Simon, 1918
               1 Haplophaedia aureliae (Bourcier & Mulsant, 1846) - greenish puffleg
               2 Haplophaedia assimilis (Elliot, 1876)
               3 Haplophaedia lugens (Gould, 1851) - hoary puffleg