Alford, J. R. , III and E. G. Bolen. 1977b. Differential responses of male and 

 female Pintail Ducks to decoys. J. Wildl. Manage. 41: 657-661. 



Calverley, B. K. and D. A. Boag. 1977. Reproductive potentials in parkland- 

 and arctic-nesting populations of Mallards and Pintails (Anatidae) . Can. 

 J. Zool. 55: 1242-1251. 



Clark, A. 1977. Review of the records of three Palearctic ducks in southern 

 Africa. Bull. Brit. Ornithol. Club 97: 107-114. 



Danell, K. and K. Sjoberg. 1977. Seasonal emergence of chironomids in rela- 

 tion to egg-laying and hatching of ducks in a restored lake (northern 

 Sweden). Wildfowl 28: 129-135. 



Derrickson, S. R. 1977. Aspects of breeding behavior in the Pintail ( Anas 

 acuta ) . Ph.D. thesis, Univ. Minnesota/Minneapolis, MN. 122 pp. 



Krapu, G. L. 1977. Pintail reproduction hampered by snowfall and agriculture. 

 Wilson Bull. 89: 154-157. 



Krapu, G. L. and G. A. Swanson. 1977. Foods of juvenile, brood hen, and post- 

 breeding Pintails in North Dakota. Condor 79: 504-507. 



Kuroda, N. 1977. [Examples of masculinized female Pintails Anas acuta .] Misc. 

 Rep. Yamashina Inst. Ornithol. 8: 282-283. [In Japanese with English sum- 

 mary. ] 



Moller, A. P. 1977. Yngletidspunkt , kuldstorrelse og ungerproduktion hos nogle 

 andefugle i Nordjylland. [Time of breeding, clutch size, and nestling pro- 

 duction in some species of Anatidae in northern Jutland, Denmark.] Dan. 

 Ornithol. Foren. Tidsskr. 71: 68-69. [In Danish with English summary.] 



Rettig, K. 1977. Zum Vorkommen der Speissente ( Anas acuta ) and der nieder- 

 sachsischen Nordseekuste . Vogelkdl. Ber . Nieders. 9: 1-3. 



Smith, F. W. 1977. Records of molting in the Pintail ( Anas acuta ) and the 

 Northern Shoveler ( Anas clypeata ) on the Texas Gulf Coast. Southwest. 

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Williams, N. A., B. K. Calverley and J. L. Mahrt. 1977. Blood parasites of 

 Mallard and Pintail ducks from central Alberta and the Mackenzie Delta, 

 Northwest Territories. J. Wildl. Dis. 13: 226-229. 



1976 



Tamisier, A. 1976. Diurnal activities of Green-winged Teal and Pintail win- 

 tering in Louisiana. Wildfowl 27: 19-32. 



1975 



Bourget, A. and G. Chapdelaine. 1975. Diving by wintering puddle ducks. Wild- 

 fowl 26: 55-57. 



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