HISTRIONICUS HISTRIONICUS * 002 

 HARLEQUIN DUCK 



Global rank: G5 Forest Service status: SENSITIVE 

 State rank: S2 Federal Status: C2 



Survey site name: UPPER MCDONALD CREEK 



EO rank: A 

 EO rank comments: 11-14 PAIRS PRESENT 



County: FLATHEAD 



USGS quadrangle: MOUNT CANNON 

 AHERN PASS 

 MOUNT GEDUHN 



Township: Range: Section: TRS comments: 

 034N 017W 27 NW4 



Survey date: Elevation: 3153 -4200 



First observation: 1973 Slope/aspect: 



Last observation: 1992-09-02 Size (acres) : 60 



Location: 



UPPER MCDONALD CREEK IN GLACIER NP; STREAM SECTION FROM 

 CONTINENTAL CREEK SW TO THE NORTH END OF LAKE MCDONALD, AND 

 INCLUDING MINERAL CREEK AND AVALANCHE CREEK AND LAKE. 



Element occurrence data: 



A POPULATION OF HARLEQUIN DUCKS WAS STUDIED OVER 4 YEARS. 31 

 BIRDS, INCLUDING 7 JUVENILES, WERE BANDED. 11-14 PAIRS 

 PRESENT. 6/5/90: 4 PR, 11 MALE, 3 FEMALE PRESENT. 1992: A 

 MINIMUM OF 14 BROODS PRODUCED A TOTAL OF 4 5 YOUNG; COLOR 

 BANDED 4 YG AND 13 ADULT FEMALES. 



General site description: 



CA. 20 MILES OF MOUNTAIN STREAM. 



Land owner /manager : 



GLACIER NATIONAL PARK 



Comments: 



EXTENT OF OCCUPIED BREEDING HABITAT UNKNOWN. SPRING PAIRS 

 AND LATE SEASON YOUNG REPORTED ON LOWER MCDONALD CREEK MAY 

 OR MAY NOT BE BIRDS FROM UPPER MCDONALD CREEK POPULATION. 



Information source: 



KUCHEL, C.R. 1977. MS THESIS, U OF M, MISSOULA, MT, 59812. 



Specimens: 



Element Occurrence Record 

 Harlequin Duck Surveys in 

 Western Montana: 1992 



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