CATALOGUE OF CANADIAN BIRDS. 251 
borough.) This seems to be the form that breeds in southern British 
Columbia, where I have noticed it in summer as far east as Arrow 
lakes, Columbia river, in lat. 50°. (Brooks.) I found this form 
very common at Skidegate, Queen Charlotte islands, in August, 
1895. (Kermode.) Mr. Frobese shot an immature male on August 
5th, 1897, at Sitka, and others were seen after that date. (Grinnell.) 
This species was seen in the mountains about Ilianana pass, and 
daily at the mouth of the Chulitna river, and others were seen at 
Nushagak in 1902. Frequently seen at Tyonek, Cook inlet, Alaska. 
(Osgood.) One immature male at Sheep creek, Alaska. (Anderson.) 
Some of the British Columbia references under A. atricapillus pro- 
bably should go here. 
CXLVI. BUTEO Cuvier. 1779-1800 
337. Red-tailed Hawk. 
Buteo borealis (GMEL.) VIEILL. 1816. 
We have no records of this species being seen in the district of 
Ungava (Labrador), but it breeds in Newfoundland, Nova Scotia, 
Prince Edward Island, New Brunswick, Quebec and Ontario. Mr. 
Spreadborough saw a few specimens on the Missinabi river and on 
Moose river, near James bay. Preble saw it, evidently breeding, 
at several places between Lake Winnipeg and Hudson bay, and 
Dr. Bell took it at Fort Churchill, Hudson bay. This species is 
abundant in the wooded portions of Manitoba, especially in the Rid- 
ing mountains, Duck mountains, Porcupine hills and northward to 
the Saskatchewan. Westward, Spreadborough found it nesting at 
Indian Head, Sask., also near Peace River landing and Dunvegan, 
Peace River district., and south along the foothills to Crow Nest 
pass, but not being a prairie species it disappears with the wood. 
I agree fully with Seton in his ‘‘Birds of Manitoba,’’ when he says 
on page 529: ‘‘This species seems to be the complement of Swainson 
hawk in Manitoba, adhering to the forest regions, while the latter 
is found only in the more open places. The differences of habit 
presented by these two species are slight but quite appreciable.” 
This species is common in the Northwest Territories, which it 
visits in summer. Specimens were shot in the Rocky mountains, 
