Scientific Name: HISTRIONICUS HISTRIONICUS 

 Common Name: HARLEQUIN DUCK 



Global rank: 

 State rank: 



G5 

 S2B,SZN 



Element occurrence code ; 

 Element occurrence type; 



Forest Service status; 

 Federal Status: C2 



ABNJB15010.002 



SENSITIVE 



Survey site name: 



EO rank: 



EO rank comments : 



County: FLATHEAD 

 USGS quadrangle: 



Township: Range: 

 034N 017W 



UPPER MCDONALD CREEK 



A/B 



11-14 PAIRS PRESENT ON MCDONALD CREEK BELOW LOGAN 



CREEK; PERHAPS 20 PAIRS IN ENTIRE COMPLEX. WHILE 



AREA IS NOT DIFFICULT ACCESS OR REMOTE, DUCKS HAVE 



ADAPTED TO VISITORS AND SOME AREAS HAVE DIFFICULT ACCESS. 



MOUNT CANNON 

 AHERN PASS 

 MOUNT GEDUHN 



Section: 

 27 



TRS comments : 

 NW4 



Precision: M 

 Survey date: 

 First observation: 

 Last observation: 



1973 

 1992-09-02 



Elevation: 3153 - 4200 



Slope/aspect: 



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, AVALANCHE CREEK AND AVALANCHE LAKE. 



Element occurrence data: 



PERHAPS 20 PAIRS PRESENT EACH SPRING, WITH CA. 10 BROODS REPORTED EACH 

 SUMMER. A WELL-SURVEYED POPULATION, WITH MANY DUCKS BANDED IN THE 

 EARLY 1990s. (SPECIFIC OBSERVATION DATA ON FILE AT MTNHP.) 



General site description: 



CA. 20 MILES OF MOUNTAIN STREAM ON MACDONALD CREEK AND ITS 

 TRIBUTARIES. 



Land owner/manager: GLACIER NATIONAL PARK 



Comments : 



EXTENT OF OCCUPIED BREEDING HABITAT UNKNOWN. SPRING PAIRS AND LATE 

 SEASON YOUNG REPORTED ON LOWER MCDONALD CREEK, FISH CREEK, ETC., MAY 

 OR MAY NOT BE BIRDS FROM UPPER MCDONALD CREEK POPULATION. 



Information source: 



ZOOLOGIST, MONTANA NATURAL HERITAGE PROGRAM, 1515 

 EAST SIXTH AVENUE, P.O. BOX 210800, HELENA, MT 

 59620-1800. 406/444-3009. 



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