LIST OF TABLES 



Table 1 . Summary of harlequin ducks marked in 1 995 4 



Table 2. U.S. Rocky Mountain streams previously used by Harlequin Ducks where no use has 



been documented since 1988 7 



Table 3. Streams in Montana where Harlequins have not been observed during recent surveys 



7 



Table 4. Significant movements of Harlequins within and between years on the breeding 



grounds 12 



Table 5. Harlequin Duck reproduction in 1995 for streams with both pair and brood surveys. 



16 



Table 6. Harlequin Duck reproductive parameters for 1974-75 (Kuchel 1977) and 1989-1995 



17 



Table 7. Sex Ratios of Harlequin Ducks on Breeding Streams during pair season in Montana 



18 



Table 8. Estimated numbers of Harlequin Ducks 22 



LIST OF FIGURES 



Figure 1 . Streams surveyed for Harlequin Ducks in Montana, Idaho, and Wyoming during the 



period 1985 - 1995 8 



Figure 2. Worldwide Harlequin Duck Distribution 9 



Figure 3. Harlequin Duck Breeding Locations in the U.S. Rocky Mountains 10 



vn 



