National Geographic : 1951 Oct
© National Geographic Society 526 Kodachromes by Arthur A. Allen Pintails, Like Robins, Are Sure Heralds of Spring - Farmers in northwestern States, hearing the musical whistle of the Pintail, know winter's end is near. Flocks arrive when open water appears on pond and lake. -> European Widgeon, a frequent east coast visitor, displays his breeding plum age (lower) and eclipse plumage (upper). While molting primary feathers the male cannot flv.