HISTRIONICUS HISTRIONICUS * 024 

 HARLEQUIN DUCK 



Global rank: G5 Forest Service status: SENSITIVE 

 State rank: S2 Federal Status: C2 



Survey site name: WHITE RIVER 



EO rank: 

 EO rank comments: 



County: FLATHEAD 

 POWELL 



USGS quadrangle: HAYSTACK MOUNTAIN 



Township: Range: Section: TRS comments: 

 021N 012W 6 SE4SW4 



Survey date: Elevation: 4700 -4850 



First observation: 1992-07-19 Slope/aspect: -/- 

 Last observation: 1992-07-21 Size (acres) : 



Location: 



IN THE BOB MARSHALL WILDERNESS, NEAR THE CONFLUENCE OF WHITE 

 RIVER AND ITS SOUTH FORK, CA. 15 AIR MILES ENE OF BENCHMARK. 



Element occurrence data: 



3 BROODS SIGHTED; 2 (FEMALE +3, FEMALE +1) AT SOUTH END OF 

 CANYON BELOW NEEDLE FALLS AND 1 (FEMALE +2) CA. 0.5 MILE 

 DOWNSTREAM OF CONFLUENCE. 



General site description: 



CA. 2 MILE SEGMENT OF MOUNTAIN STREAM. 



Land owner /manager : 



BOB MARSHALL WILDERNESS 



FLATHEAD NATIONAL FOREST, SPOTTED BEAR RANGER DISTRICT 



Comments : 



EXTENT OF OCCUPIED BREEDING HABITAT UNKNOWN. 



Information source: 



CASTREN, CHAD. 1992. [REPORT ON FIELD SURVEYS FOR HARLEQUIN 

 DUCKS, SUMMER 1992.] 



Specimens: 



Element Occurrence Record 

 Harlequin Duck Surveys in 

 Uestern Montana: 1992 



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