Appendix C. Element Occurrence Records from 1993 Surveys 



BOULDER RIVER 55 



UPPER MCDONALD CREEK 57 



ROCK CREEK (NOXON) 59 



MARTEN CREEK 63 



VERMILION RIVER 71 



SWAMP CREEK 77 



MIDDLE FORK FLATHEAD RIVER 81 



TRAIL CREEK 83 



SPOTTED BEAR RIVER 87 



TABLES 



Table 1. Streams surveyed for Harlequin Ducks in 1993 8 



Table 2. Miscellaneous reports of Harlequin Ducks during 1993 and reports 



for prior years received during 1993 11 



Table 3. Harlequin Duck reproduction in 1993 for streams with both pair and 



brood (at fledging) information 18 



Table 4. Harlequin Duck reproductive parameters 1988-1993 19 



Table 5. Summary of Harlequin Ducks marked in 1993 20 



Table 6. Sightings and recaptures in Montana of adult Harlequins marked in 



Montana 1991-1992 and adult females marked in spring 1993 21 



FIGURES 



Figure 1. Harlequin Duck breeding locations in Montana 7 



Figure 2. Hydrograph: 1988-1990 for the North Fork Flathead River near 



Columbia Falls, Montana 16 



Figure 3. Hydrograph: 1991-1993 for the North Fork Flathead River near 



Columbia Falls, Montana 17 



VM 



