MONTANA NATURAL HERITAGE PROGRAM 

 Element Occurrence Record 



Scientific Name: HISTRIONICUS HISTR'ONICUS 

 Common Name: HARLEQUIN DUCK 



Global rank: 04 Forest Service status: SENSITIVE 

 State rank: S2B,SZN Federal Status: C2 



Element occurrence code: ABNJB15010. 008 

 Element occurrence type : 



Survey site name: VERMILION RIVER 



EO rank: D/C 

 EO rank comments: 3 PAIRS PRESENT IN 1993, FEWER IN PREVIOUS YEARS. 3-4 OTHER STREAMS 



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