CATALOGUE OF CANADIAN BIRDS, 237 
September, 1891, and three others in May, 1892, by W. Spread- 
borough. 
One set of two eggs taken at Indian Head, Assa., June 4th, 
1892 ; one of three taken at the eastern end of the Cypress Hills, 
Assa., June 18th, 1894; three others each containing two eggs 
taken at 12-Mile Lake, Assa., June 6th, 1895, Wood Mountain, 
Assa., June 14th, 1895, and on White Mud River, June 22nd, by 
W. Spreadborough. 
343. Broad-winged Hawk. 
Buteo platypterus (V1EILL.) Faxon. 1901. 
This species probably occurs in Newfoundland. (eeks.) It 
_ is very rare in Nova Scotia. (Downs.) A rather rare summer 
resident in New Brunswick, but increasingly common as we go 
west in the valley of the St. Lawrence. It is found all over 
Ontario and extends westward to Winnipeg where it breeds. As 
a straggler it has been seen by Thompson-Seton at Carberry in 
Manitoba. Sir John Richardson records its occurrence at Moose 
Factory on James Bay, and in June, 1896, Mr. Spreadborough 
found it common on Moose River, but none were seen north of 
Moose Factory. This may be considered the northern limit. 
BREEDING Notes.—I observed three of these hawks, old and 
young, 24th July, 1887, circling round above Mount Royal Park, 
Montreal, and heard them uttering a note very much like that of 
a cowbird. I also saw a pair in the trees near the same place on 
June 4th of the same year, and probably they bred there. I have 
observed this species here from March 30th to October tgth. 
(Wintle.) This species breeds about the middle of May, and 
seems to prefer a hemlock or swamp ash tree to nest in. The 
nest is placed about 20 feet or more from the ground, is composed 
of dry sticks and lined with pieces of bark and dead leaves and 
is rather larger than a crow’s. The eggs, two or more in number, 
are of a dirty yellowish or grayish white with blotches of reddish 
brown. The species is not rare around Ottawa, Ont. (G..R. White.) 
The writer shot a female of this species as she rose from her 
nest, which was on a swamp ash in what was then Stewart’s Bush 
within the limits of the city of Ottawa. This was on 24th May, 
1884. Since then the city has extended over a mile to the south 
of this locality and night hawks nest on the roofs of the houses 
built on the same spot. 
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