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] Pelecaniformes Sharpe, 1891
         Family Phalacrocoracidae Reichenbach, 1850 [monotypic] - cormorants
           Genus Phalacrocorax Brisson, 1760
             Phalacrocorax auritus (Lesson, 1831) - double-crested cormorant
               1 Phalacrocorax auritus cincinatus (Brandt, 1837)
               2 Phalacrocorax auritus albociliatus Ridgway, 1884
               3 Phalacrocorax auritus auritus (Lesson, 1831)
               4 Phalacrocorax auritus floridanus (Audubon, 1835)
               5 Phalacrocorax auritus heuretus Watson, Olson & Miller, 1991