Castren. C. 1991. (Field report for surveys in 1991]. 



Castren. Chad. 1992. [Report on field surveys for harlequin ducks, summer 1992]. 



Chadwick. D. H. 1992. Some observations of a concentration of harlequin ducks in the Strait of Georgia British 

 Columbia. Pp. 3340 in: Proceedings Harlequin Duck Symposium, Apr 234. 1992, Moscow, ID. 45 pp. 



Childs, H. E., Jr. 1969. Birds and mammals of tlie Pitmegea River region. Cape Sabine, northwestern Alaska. University 

 of Alaska Biological Papers. No. 10. 74 pp. 



Claikson, P. 1992. A preliminary investigation into the status and distribution of harlequin ducks in Jasper National 

 Park. Unpubl. Tech Rep., Nat. Res. Conserv.. Jasper Natl. Park, Alberta. 63 pp. 



Clarksoa P. 1994. Managing watersheds for harlequin ducks. Unpubhslied presentatioa American River Management 

 Society River Without Boundaries Symposium. Grand Junction, CO. 33 pp. 



Clarkson, P. and R. I. Goudie. 1994. Capture techniques and 1993 banding results for moulting Harlequin ducks in the 

 Strait of Georgia, B.C. Pp. 11-14 in: Proc. 2nd ana Harlequin duck symposium, March 13-15, 1994. Harlequin 

 Duck Working Group. 22 pp. plus appendices. 



Cottam, Clarence. 1939. Food habits of North American diving ducks. Pp. 80-86. in Tecli Bull. No. 643. USD A, 

 Washington. D.C. 



Coues. E. 1974. Birds of the Northwest: A liand-book of the omitliology of the region drained by tlK Missouri River and 

 its tributaries. U.S. Geological Survey of the Temtories Misc. Publ. 3. 791 pp. 



Crowley, D. W. 1994. Breeding habitat of Harlequin ducks in Prince William Sound, Alaska. P. 4 in: Proc. 2nd ana 

 Harlequin duck symposium. March 1-15. 1994. Harlequin Duck Working Group. 22 pp. plus appendices. 



Davis, C. V. 1961. A distributional sUidy of the birds of Montana. Ph.D. dissertatioa Oregon State University, 

 Corvallis. 462 pp. 



Delacour, J. 1959. Waterfowl of the world. Vol. 3. Country Life Ltd., London. 270 pp. 



Delacour, J. and E. Mayr. 1945. The family Anatidae. Wilson Bull. 57(1-J3. 



Dement'ev, G. P. and N. A. Gladkov, (eds.). 1967. Birds of the Soviet Unioa Vol. 4. Translated from 1952 Russian 

 editioa Israel Program for Scientific Translations. U.S. Department of the Intenor and National Science 

 Foundation. Washington, D.C. 



Derscheid. J. M. 1941. Notes sur certains Canards plongeurs. Gerfaut 3 1(3):-»P. (Abstr.) 



Diamond. S. and P. Finnegaa 1992. Harlequin duck ecology on Montana's Rocky Mountain Front. Urpublished report. 

 Rocky Mountain District. Lewis and Clark National Forest, Choteau. MT. 45 pp. 



Diamond. S. and P. Finnegaa 1993. Harlequin duck ecology on Montana's Rockv Mountain Front. Unpublislied report. 

 Rocky Mountain District, Lewis and Clark National Forest, Choteau. MT. 45 pp. 



Diamond. Seth. 1990. [Various reports of harlequin sighfings along the RMF during 1990.] 



Dickinson, J. C, Jr. 1953. Report on the McCabe collection of British Columbian birds. Hanard Universitv. Museum of 



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