1950 



Bellrose, F. C. and E. B. Chase. 1950. Population losses In the Mallard, 



Black Duck, and Blue-winged Teal. 111. Nat. Hist. Surv. Biol. Notes No. 

 22: 1-27. 



1949 



Glover, F. A. 1949. Nesting and production of waterfowl in northwest Iowa: 

 with special reference to the Blue-winged Teal ( Anas discors Linnaeus). 

 Ph.D. thesis, Iowa State College/Ames, IA. 



Mann, G. 1949. Notes from a study of the Blue-winged Teal. Flicker 21: 1-6. 



Stoudt, J. H. 1949. Migration of the Blue-winged Teal. U.S. Fish & Wildl. 

 Serv., Spec. Sci. Rept . Wildl. No. 1: 19-20. 



Zimmerman, F. R. 1949. Blue-winged Teal. Wise. Conserv. Bull. 14: 31-32. 



1944 

 Wetmore, A. 1944. The Blue-winged Teal at sea. Auk 61: 473. 



1938 



Bennett, L. J. 1938. The Blue-winged Teal, its ecology and management. Col- 

 legiate Press, Ames, IA. xiv and 144 pp. 



1937 



Bennett, L. J. 1937. The ecology and management of the Blue-winged Teal, 

 Querquedula discors . Ph.D. thesis, Iowa St. Univ. /Ames, IA. 



1932 



Austin, 0. L., Jr. 1932. The breeding of the Blue-winged Teal in Maryland. 

 Md. Conserv., summer issue: 11-13. 



1930 



0'Mahony, E. 1930. American Blue-winged Teal in Ireland. Brit. Birds 24: 

 195. 



1924 



Latham, R. 1924a. Blue-winged Teal breeding on Long Island, N.Y. Auk 41: 

 338-339. 



. 1924b. Blue-winged Teal breeding on Long Island — supplement. Auk 41 



471-472. 



243 



