6 June (ll:30ain): Five adult males were observed on the 

 Boulder River (T6S R12E S9) 0.5 miles (odometer reading) upstream 

 from the Hilleary bridge (Figure 3) . This group of drakes was 

 seen floating downstream with the main current, which was 

 separated from a calm backwater area by a gravel bar. The main 

 current was strong enough in this stretch to raise standing waves 

 approximately 0.5 m high. The ducks appeared to be doing nothing 

 more than traveling downstream. They quickly disappeared from 

 view. Habitat ; A straight reach in a generally meandering channel 

 with a strong current stacked up in short standing waves. Both 

 banks sloped gradually to the water. The west bank was forested 

 with an understory of moderately dense shrubs; the east bank was 

 an open gravel bar which separated the main channel from a 

 backwater area. There were no loafing sites in this stretch. 

 Distance to the road was 30-40 m. 



6 June (11:30am): One pair was observed on the Boulder River 

 (T6S R12E S9) 0.5 miles (odometer reading) upstream from the 

 Hilleary Bridge (Figure 3) . The pair was first seen in a 

 backwater area along the east bank and was observed for 20 

 minutes. During the first 10 minutes the pair casually swam 

 around in small circles, feeding by dipping the bill into the 

 water, the hen more often than the drake. During this period the 

 drake would approach the hen and peck at the back of her neck. 

 Over the last 3-4 minutes of this time period the frequency and 

 intensity of these pecks quickly increased, culminating with 

 mounting which lasted 4 seconds. The hen then escaped but was 



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