376 APPENDIX G 



the night at our camp, near Brul6 Rapid, October 22. The 

 drumming of others was heard above Pelican Portage on October 

 27 and 28; and during the night of October 31, while we were 

 encamped about fifteen miles below Athabaska Landing, we 

 were again serenaded by one of these drummers. 



Lagojms lagojms lagopus (Linn.) . Willow Ptarmigan. 



We first met with this Barren-Ground species on the northern 

 shore of Clinton-Colden Lake on August 11, when we encoun- 

 tered an old bird which was accompanied by her brood of ten 

 young ones. A fine male specimen was taken at our camp on 

 the northern shore of Aylmer Lake on August 17, and another 

 one at the same place on the following day. Although we were 

 on favourable ground for this species for nearly three weeks the 

 bird was seen but on one other occasion, on August 28, when we 

 observed several on the southern shore of Clinton-Colden Lake. 



Circus hvdsonius (Linn.). Marsh Hawk. 



The marsh hawk was seen near Edmonton on May 10 and 11, 

 and between Vermilion and Sandy Creeks, on the Athabaska 

 Landing road, on May 12. Another, the last one observed dur- 

 ing the season, was noted on the lower Athabaska on June 4. 



Accipiter velox (Wilson). Sharp-shinned Hawk. 



This little falcon was observed near Smith Landing on June 

 10 and 12, single birds being observed. The species was next 

 seen on Slave River, near Grand D6tour, on October 2 during 

 our return trip. 



Accipiter cooperi (Bonaparte). Cooper's Hawk. 



This hawk, which as far as known inhabits only the extreme 

 southern part of the region visited during our trip, was noted at 

 Edmonton on May 10. 



Astur atrkapiUus atricapiUm (Wilson). Goshawk. 



Goshawks were noted on Slave River, near Grand Detour, on 

 October 2, and on the lower Athabaska on October 11 and 12. 



