terrytnewzealand, who says ducks, geese and swans are all the same kind?

SWAN GENERA and SPECIES:
C. cygnus
C. buccinator
C. columbianus
C. bewickii
C. atratus
C. melancoryphus
C. olor
C. sumnerensis
Coscoroba Reichenbach 1853
C. coscoroba

DUCK SUBFAMILIES:
Dendrocygninae
Oxyurinae
Anatinae
Merginae

GOOSE GENERA:
Anser
Branta
Chen
Cereopsis
Cnemiornis

....kinds are kinda like genera..but not quite.