MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



Scientific Name: HISTRIONICUS HISTRIONICUS 

 Common Name: HARLEQUIN DUCK 



Global rank: G5 Forest Service status: SENSITIVE 



State rank: S2B,SZN Federal Status: C2 ■» 



Element occurrence code: ABNJB15010.018 



Element occurrence type : ' - , ^ ; , 



...1 • ■ 

 Survey site name: MIDDLE FORK FLATHEAD RIVER "" ■• 



EO rank: 



EG rank comments : , 



County: FLATHEAD 



USGS quadrangle: NIMROD 



Township: Range: Section: TRS comments: 

 028N 015W 19 



Precision: M 



Survey date: Elevation: 4050 - , 



First observation: 1990 Slope/aspect: 



Last observation: 1993-08-02 Size (acres) : 



Location: 



ALONG THE MIDDLE FORK FLATHEAD RIVER, CA. 5 MILES BY TRAIL UPSTREAM 

 (SOUTH) OF US 2. 



Element occurrence data: 



PROBABLY 1 TO 4 BROODS PRODUCED IN A CA. 5 MILE SECTION AROUND SPRUCE 

 PARK. (SPECIFIC OBSERVATION DATA ON FILE AT MTNHP.) 



General site description: 



Land owner/manager: 



GREAT BEAR WILDERNESS 



FLATHEAD NATIONAL FOREST, HUNGRY HORSE RANGER DISTRICT i f 



■-*■?¥ 



Comments : 



1992 SIGHTING BY SARAH SIGLER (USFS) . 



Information source: CARLSON, J. C. 1990. RESULTS OF 1990 SURVEYS FOR 



HARLEQUIN DUCKS ON THE FLATHEAD NATIONAL FOREST, 

 MONTANA. [UNPUBLISHED REPORT] . 31 PP. 



Observation summary: 



Observer/date Location: Observation: 



1993-08-01, CASTREN T28N,R15W, S28 HEN + 3 JUV 



1993-08-02, CASTREN T28N,R15W, 330 HEN + 1 JUV 



1993-08-02, CASTREN T28N,R15W, S19 HEN + 4 JUV 



81 



