Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Galloanserae Sibley, Ahlquist & Monroe Jr., 1988 see Subcohort Galloanserae Sibley, Ahlquist & Monroe Jr., 1988
       [Order] Anseriformes Wagler, 1831 - waterfowl and screamers
         Family Anatidae Vigors, 1825 - ducks, geese, swans
           Subfamily Anserinae Vigors, 1825 - geese
             Genus Branta Scopoli, 1769 - Canada goose
               Branta bernicla (Linnaeus, 1758) - brent goose
                 1 Branta bernicla bernicla (Linnaeus, 1758) - white-bellied brant
                 2 Branta bernicla hrota (Müller, 1776)
                 3 Branta bernicla nigricans (Lawrence, 1846) - black brant