4. Radio-telemetry study of the effects of disturbance on movements and habitat selection by 

 Harlequin Ducks. 



5. Site fidelity, productivity, survival, and recruitment of Harlequin Ducks in western North 

 America: Modeling the available data. 



ACKNOWLEDGMENTS 



E. F. Cassirer lead the Northern Rocky Mountains Working Group in compiling the data and 

 literature on surveys and research priorities for the region, with considerable input from R. Wallen 

 and E. Atkinson. Many people helped to complete the data analyses, map preparation, and 

 literature compilation reported here. C. Jones, K. Jurist, D. Dover, M. Beer, J. Hinshaw, and D. 

 Center of the Montana Natural Heritage Program all contributed to the time and effort needed to 

 finish this report. 



REFERENCES 



Abstracts from Montana Rare Animal Meeting. 1992. [NovembeF^ 1992). Lewistown. MT. 20 pp. 



Alford, C. E. 1920. Some notes on the harlequin duck. British Birds 14t14. 



American Ornithologists" Unioa 1983. Check-hst of North American Birds, 6th editioa Allen Press. Inc.. Lawrence, 

 Kansas. 877 p. 



Asliley. J. 1992. A summary of documented liarlequin duck observations in Glacier National Park. 1874-1992. Draft 

 unpublished report, 18pp plus maps. 



Ashley. J. 1994. 1992-93 harlequin duck monitoring and inventory in Glacier National Park, Montana. Unpubhslied 

 report, Div. Res. Manage., Glacier Natl. Park. Montana. 57 pp. 



Ashley. J. 1994. Progress report: harlequin duck inventory and monitoring in Glacier National Park. Montana. 

 Unpublished report, Div. Res. Manage.. Glacier Natl. Park, Montana. 14 pp. 



Ashley, J. 1994. Status of Harlequin ducks in Glacier National Park, Montana. P. 2 in: Proc. 2nd aim. Harlequin duck 

 symposium, March 1315. 1994. Harlequin Duck Working Group. 22 pp. plus appendices. 



Ashley. J. 1995. Harlequin duck surveys and tracking in Glacier National Park, Montana. Unpubhslied report Di\. 

 Natural Resources. Glacier National Park, West Glacier, Montana. 4 1 pp. 



Atkinson, E. C. and M. L. Atkinson 1990. Distribution and status of harlequin ducks {Histrionicus histrionicus) on the 

 Targhee National Forest. Idaho Dept. of Fish and Game, Nongame and Endang. Wildl. Prog. 25 pp. 



Bailey. A. M. and R. J. Niedrach. 1965. Birds of Colorado. Vol. 1. Denver Mus. Nat. Hist. 454 pp. 



Bailey, A. M. and R. J. Niedrach. 1967. A pictorial checkhst of Colorado birds, with brief notes on the status of each 

 species in neigliboring states of Nebraska. Kansas, New Mexico, Utah, and Wyoming. Museum of Natural Histon , 

 Denver. 



Bailey, V. 1918. Wild animals of Glacier National Parte: the mammals, with notes on physiography and life zones. U.S. 

 Department of the Interior, National Park Service. 210 pp. 



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