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] Passeriformes Linnaeus, 1758
         oscines see Suborder Oscines
           Passerida - passeridans see Parvorder Passerida (C. Linnaeus, 1758) Sibley et al., 1988
             Sylvioidea
               Family Sylviidae Leach, 1820 - Old World warblers
                 Subfamily Acrocephalinae Salvin, 1882
                   Genus Nesillas Oberholser, 1899
                     1 Nesillas typica (Hartlaub, 1860)
                     2 Nesillas lantzii (A. Grandidier, 1867)
                     3 Nesillas longicaudata (E. Newton, 1877)
                     4 Nesillas brevicaudata (Milne-Edwards & Oustalet, 1888)
                     5 Nesillas mariae Benson, 1960
                     6 ‡Nesillas aldabrana Benson & Penny, 1968