BIBLIOGRAPHY 



1981 



Fleming, W. J. 1981. Environmental metal residues in tissues of Canvasbacks. 

 J. Wildl. Manage. 45: 508-511. 



Nichols, J. D. and G. M. Haramis. 1981. Sex-specific differences in winter 

 distribution patterns of Canvasbacks. Condor 82: 406-416. 



Sugden, L. A. 1981. Parasitism of Canvasback nests by Redheads. J. Field 

 Ornithol. 51: 361-364. 



1980 



Alexander, W. C. 1980. Aggressive displays in nonbreeding Canvasbacks. Auk 

 97: 198-201. 



Cely, J. E. 1980a. Distribution and feeding ecology of Canvasback Ducks along 

 the South Carolina coast. M.S. thesis, Clemson Univ./Clemson, SC. 59 pp. 



. 1980b. The ecology and distribution of banana waterlily and its utili- 

 zation by Canvasback ducks. Proc. 33rd Annu. Conf. Southeastern Assoc. 

 Fish & Wildl. Agencies: 43-47. 



Nichols, J. D. and G. M. Haramis. 1980. Inferences regarding survival and re- 

 covery rates of winter-banded Canvasbacks. J. Wildl. Manage. 44: 164-173. 



Nudds, T. D. 1980. Canvasback tolerance of Redhead parasitism: an observation 

 and an hypothesis. Wilson Bull. 92: 414. 



Perry, M. C. and P. H. Geissler. 1980. Incidence of embedded shot in Canvas- 

 backs. J. Wildl. Manage. 44: 888-894. 



Sugden, L. G. and G. Butler. 1980. Estimating densities of breeding Canvas- 

 backs and Redheads. J. Wildl. Manage. 44: 814-821. 



1979 



Alexander, W. C. and J. D. Hair. 1979. Winter foraging behavior and aggression 

 of diving ducks in South Carolina. Proc. 31st Annu. Conf. Southeastern 

 Assoc. Fish & Wildl. Agencies: 226-232. 



Haramis, G. M. and J. D. Nichols. 1979. Sex-specific differences in winter 



distribution patterns of Canvasbacks. (Abstract only). Bull. Ecol. Soc. 

 Amer. 60: 100. 



Jessen, R. and C. Henderson. 1979. Canvasback breeding in Minnesota. Loon 

 51: 46. 



Welling, C. H. and W. J. L. Sladen. 1979. Canvasback sex ratios on Rhode and 

 West rivers, Chesapeake Bay, 1972-78. J. Wildl. Manage. 43: 811-813. 



264 



