rapidly pursued by the drake. Within a matter of a few seconds 

 their behavior calmed and the pair swam out to the gravel bar. 

 They spent the next 10 minutes walking about along the shore and 

 poking among the rocks with their bills, occasionally stopping to 

 preen for a few seconds. They were still involved in this 

 behavior when I left to continue the survey. This pair was seen 

 about two hours later (2:00pm) resting on the same gravel bar. 

 Habitat : Backwater area formed by a log jam and separated from 

 the main channel by a gravel bar (see description above) . The 

 east bank sloped gently to the water and was forested, with an 

 understory of dense shrubs. Because of the high water at this 

 time of year, many of the bank shrubs were flooded, providing 

 cover for the harlequins on the water. Midstream loafing sites 

 consisted of a few partially submerged logs (1-3/10 m) and the 

 large gravel bar. Distance from the road was 3 0-4 m. 



6 June (4:00pm): A single adult hen was observed on the 

 Boulder River (T6S R12E S3) about 400 m downstream from Fourmile 

 Creek. The hen initially was sighted on a rock on the east bank 

 of the river. She spent about 1 minute preening then entered the 

 water and was observed feeding by diving for a couple minutes 

 more before disappearing from view. Habitat ; Meandering channel 

 with a strong current broken into sections of Whitewater by large 

 subsurface rocks. The hen used an eddy along the east bank which 

 was formed by a large boulder which jutted out into the current. 

 The east bank was cut out and approached the water very steeply. 

 Adjacent to the water it was composed of large rocks and 



12 



