1951 



Gehrman, K. 1951. An ecological study of the Lesser Scaup Duck ( Aythya af fin- 

 is Eyton) at West Medical Lake, Spokane County, Washington. M.S. thesis, 

 Washington St. Univ. /Pullman, WA. 94 pp. 



1941 



Munro, J. A. 1941. Studies of waterfowl in British Columbia. Greater Scaup 

 Duck, Lesser Scaup Duck. Can. J. Res. 19 (Sect.D): 113-138. 



1933 



Cottam, C. 1933. Feeding habits of the Lesser Scaup Duck. Condor 35: 118-119. 



1931 



Greene, E. R. 1931. A late spring record of Lesser Scaup Duck ( Aythya affinis ) 

 in Georgia. Auk 48: 256-257. 



Trautman , M. B. 1931. Status of the American and Lesser Scaup Ducks in Ohio. 

 Auk 48: 257-258. 



1928 



Ford, E. R. 1928. Lesser Scaup Duck in Michigan in summer. Auk 45: 497-498. 



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