Winkler, A. H. (American, twentieth century) Carrion Birds and Birds of Prey- The Pictorial Cyclopedia of Nature. 1930s. Watercolor on board for illustration of –Carrion Birds and Birds of Prey.” Lacking the lettering and titles present in the publication. Image measures 19 x 14 inches. Margins of board marked up by printer, and with soiling not affecting painted image. Signed. Very good.