CATALOGUE OF CANADIAN BIRDS. 239 
CXXV. ARCHIBUTEO Brexm. 1828. 
347. Rough-legged Hawk. 
Archibuteo lagopus (BRiNN.) GRAY. 1841. 
Several specimens from St. Michael and one obtained by me 
on Unalaska are indistinguishable from European birds contained 
in the National Museum collection. On the northern coast of 
Alaska, including tne shore of Behring Sea and the Arctic, and 
thence in the interior along the entire course of the Yukon, 
many specimens of the Rough-legged Hawk have been taken, but 
none from this region are in the melanistic phase so common 
among birds from the Hudson Bay country. In fact all the 
specimens from northwestern Alaska appear referable to the Old 
World form, as certainly are the examples mentioned. (JVe/son.) 
347a. American Rough-legged Hawk. 
Archibuteo lagopus sancti-johannis {GMEL.) COUES. 1872. 
This species is the common hawk of Ungava and the barren 
grounds extending west from Hudson Bay. It breeds especially 
in the northern part of its range and eastward to Newfoundland. 
It is a winter migrant in Nova Scotia and New Brunswick. 
Mr. Wintle remarks that it is a transient visitor at Montreal 
especially in November. 
A spring and autumn migrant in Ontario. (Wcllwraith.) A 
remarkable migration of these hawks took place in October, 1895, 
and a considerable number was killed at Toronto. The flight was 
simply enormous. I could have bought over one hundred had 
they been any use to me. [I obtained four or five of the black 
form. (jJ. H. Fleming.) This bird is far from common in 
Manitoba, and so far as noted it is found only in the spring and 
fall. (Zhompson-Seton.) The only specimens of this bird I have 
seen west of Manitoba were one taken at Indian Head, Assa., in 
the spring of 1892, and one observed at Edmonton, Alta., in 
April, 1897. (Spreadborough.) Richardsan, Ross and Macfar- 
lane found it in the northern forest in summer but in all my 
wanderings south of the Saskatchewan or in the mountains I have 
never met with it. I am led to believe that the following refer- 
ences belong to a race distinct from the eastern bird which seems 
to have its centre of migration in Ontario. (Macoun.) 
