Hawaiian duck (male and female), Oustalet's Gray Duck (Anas oustaleti), and Laysan teal.
From A natural history of the ducks. Volume.II. The Genus Anas By John C. Phillips
Associate curator of birds in the Museum of Comparative Zoology at Harvard College
with plates in color and in black and white
from drawings Frank W. Benson, Allan Brooks, Louis Agassiz Fuertes and Henrik Grönvold.
Date
between 1922 and 1926
date QS:P,+1922-00-00T00:00:00Z/8,P1319,+1922-00-00T00:00:00Z/9,P1326,+1926-00-00T00:00:00Z/9
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
{{Information |Description=Oustalet's Gray Duck (Anas oustaleti) illustrated as the third bird along by Allan Brooks (1869 - 1946). From A natural history of the ducks. Volume.II. The Genus Anas By John C. Phillips Associate curator of birds in the Mu...