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 Anatinae Vigors, 1825 - pond ducks
Genus Anas Linnaeus, 1758 - Pacific black duck
Anas georgica Gmelin, 1789 - yellow-billed pintail
‡?Anas georgica niceforoi Wetmore & Borrero, 1946 - Niceforo's pintail