ABSTRACT 



Surveys were conducted to gain more information on the 

 summer brooding and population distribution of harlequin ducks on 

 high mountain streams in the Gallatin and Custer National 

 Forests. The surveys were completed by walking the stream banks 

 of 53 outlined streams. A majority of the streams ArB located in 

 four Forest Service Ranger Districts. The four ranger districts 

 are the Big Timber, Livingston, Gardiner, and Bozeman that split 

 the Gallatin National Forest. A summary and habitat description 

 of each stream surveyed is given for each of the streams in the 

 four districts covered. Potential habitat alterations and high 

 recreation use problems are discussed. A total of five harlequin 

 ducks were seen throughout this survey. Three adult males and 

 two females were observed in the Boulder River drainage of the 

 Big Timber Ranger District. 



IV 



