APPENDIX G 377 



Buteo borealis calurus Cassin. Western Red-tail. 



A melanistic individual of this species was seen at Edmonton 

 on May 11, and one in the normal plumage on May 12. Another 

 dark bird was noted near Athabaska Landing on May 13. While 

 we were descending the Athabaska red-tails were seen below 

 Athabaska Landing on May 18, and below Pelican Portage on 

 May 20. Observed near Smith Landing, June 8; at Fort 

 Smith, June 18 and 21; and on Little Buffalo River, July 7. 

 In the country drained by the Buffalo and its tributary, the Ny- 

 arling, the species seemed rather common. Several, some of 

 which had nests, were seen on the Nyarling on July 8, 10, and 11 ; 

 and while we were descending Little Buffalo River on July 12 

 we passed two nests of the species. It was last observed on the 

 Athabaska, a few miles below Athabaska Landing, on October 31. 



Archibuteo lagopus sancti-johannis (Gmelin). Rough-legged 

 Hawk. 

 A bird of this species was seen a few miles north of Edmonton 

 on May 11. The species was next observed near Salt River, 

 north-west of Fort Smith, on June 25. About the large lakes to 

 the north-eastward of Great Slave Lake the bird was fairly com- 

 mon. We noted individuals near the southern end of Clinton- 

 Colden Lake on August 9, on its northern shore on August 11, 

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

 the outlet of Clinton-Colden on August 30. Others were seen 

 near the head of Artillery Lake on September 1, and at our camp, 

 near the tree limit, on September 7 and 8. During our return 

 trip we observed the species in the Slave River delta, September 

 25; near Fort Smith, October 4; and near Fort Chipewyan, 

 October 9 and 10. While ascending the Athabaska we noted 

 a few near Fort McMurray, October 16 and 17; and above 

 Boiler Rapid, October 22. 



Aquila ehryaaetos (Linn.). Golden Eagle. 



While we were descending the Athabaska on May 26 we noted 

 a pair of these fine birds below Brul6 Rapid. The species was 



