The number of individuals, and their sex and age, was also noted. 



A summary was completed for each survey day. The summary 

 included miles of stream surveyed, hours required to complete the 

 survey, survey type, number of observers, sighting potential, 

 other waterfowl, weather and site condition. 



RESULTS AND DISCUSSION 



The Stream Surveys 



Over 220 miles of creeks and rivers were surveyed between 

 June 24 and August 28, 1991. Some streams in the study area were 

 not surveyed because they did not meet certain criteria for 

 Harlequin Duck habitat, usually the size at the stream's mouth. 

 For streams that were wide enough, we attempted to survey at 

 least five miles upstream from the mouth. Table 1 summarizes the 

 streams surveyed, as well as the length, start and stop point for 

 each survey. 



Harlequin Sightings 



A total of 25 harlequins were recorded in the study area: 13 



13 



