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LITERATURE CITED 



Bellrose, F. C. 1980. Ducks, Geese & Swans of North America. 



Third ed . Stackpole Books, Harrisburg, PA . 540pp. 

 Kuchel, C. R. 1977. Some aspects of the behavior and ecology of 



harlequin ducks breeding in Glacier National Park, Montana. 



M.S. Thesis, Univ. of Montana, Missoula, MT . 156pp. 

 Markum, D. 1990. Distribution and Status of the Harlequin Duck 



on the Gallatin National Forest, Montana. Draft. 18pp. 

 Wallen, R. L. 1987. Habitat utilization by harlequin ducks in 



Grand Teton National Park. M.S. Thesis, Montana State 



Univ., Bozeman, MT. 67pp. 



