Common Merganser
Mergus merganser
  (L 25" WS 34" Wt 3.4 lb)
Large diving duck
with a long thin bill.
Starved Rock State Park
Utica
14Feb2011
females
All white flanks on males.
© Audubon
Society
Mergus in Latin means a kind of
waterbird mentioned by Pliny,
Terentius et al.; merganser in Latin
means
a kind of waterbird.
© BirdNote,
Dennis Paulson
© Wikipedia