Abstract
Anas p. platyrhynchos.-Female, buff. Coll. in Saitama Pref., 1940. Female, assuming the male plumage. Coll. at Shinhama Duck Decoy, Chiba Pref., December 1962. (Fig. 1)
Anas poecilorhyncha zonorhyncha.-Adult, greyish buff. Coll. at Isawa-gun, Iwate Pref., 1960. (Fig. 2) A photograph of the Spot-billed Duck in nearly albino. Kawasaki, Ryôtsu City, Niigata Pref. (Island of Sado), April 1963. (Fig. 3)
Anas c. crecca.-Female, buff. Coll. at Shinhama Duck Decoy, Chiba Pref., March 1958.
