1931 



Boase, H. 1931. The display of the Mallard. Brit. Birds 25: 12-17. 



Sprunt, A., Jr. 1931. Total albinism in the Mallard ( Anas platyrhynchos ) , 

 Auk 48: 414. 



1930 



Buxton, R. J. 1930. Mallard killing house sparrow. Brit. Birds 23: 222-223. 

 Lack, D. 1930. Mallard killing house sparrow. Brit. Birds 23: 255. 



1929 

 Owen, J. H. 1929. Mallard laying in old crow's nest. Brit. Birds 23: 65-66. 



1926 



Lincoln, F. C. 1926. Lifting power of the Mallard. Proc . Biol. Soc. Wash. 

 39: 142. 



1925 



Bird, R. D. 1925. Mallard Duck nesting in a tree. Auk 42: 441-442. 



1918 



McAtee, W. L. 1918. Food habits of the Mallard Ducks of the United States. 

 U.S. Dept. Agric. Bull. No. 720. 36 pp. 



1916 



Townsend, C. W. 1916. The courtship of the Merganser, Mallard, Black Duck, 

 Baldpate, Wood Duck and Bufflehead. Auk 33: 9-17. 



1914 



Brock, S. E. 1914. The display of the Mallard in relation to pairing. Scott, 

 Nat. 1914: 79-86. 



201 



