CATALOGUE OF CANADIAN BIRDS. 239 



CXXV. ARCHIBUTEO Brehm. 1828. 

 47. Rough-legged Hawk. 



Archibuteo lagopus (Brunn.) Gray, 1841. 



Several specimens from St. Michael and one obtained by me 

 >n Unalaska are indistinguishable from European birds contained 

 n the National Museum collection. On the northern coast of 

 Alaska, including the shore of Behring Sea and the Arctic, and 

 hence in the interior along the entire course of the Yukon, 

 nany specimens of the Rough-legged Hawk have been taken, but 

 lone from this region are in the melanistic phase so common 

 imong birds from the Hudson Bay country. In fact all the 

 ipecimens from northwestern Alaska appear referable to the Old 

 A^orld form, as certainly are the examples mentioned. {Nelson.) 



•Ala. 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 

 n the northern part of its range and eastward to Newfoundland. 

 X is a winter migrant in Nova Scotia and New Brunswick. 

 Vlr. Wintle remarks that it is a transient visitor at Montreal 

 ispecially in November. 



A spring and autumn migrant in Ontario. {Mcllwraitk.) A 

 emarkable migration of these hawks took place in October, 1895, 

 ind a considerable number was killed at Toronto. The flight was 

 imply enormous. I could have bought over one hundred had 

 hey been any use to me. I obtained four or five of the black 

 orm. (/. H. Fleming.) This bird is far from common in 

 ilanitoba, and so far as noted it is found only in the spring and 

 all. {Thompson-Seton.) The only specimens of this bird I have 

 een west of Manitoba were one taken at Indian Head, Assa., in 

 he spring of 1892, and pne observed at Edmonton, Alta., in 

 \.pril, 1897. {Spreadborough.) Richardson, Ross and Macfar- 

 ane found it in the northern forest in summer but in all my 

 randerings south of the Saskatchewan or in the mountains I have 

 lever met with it. I am led to believe that the following refer- 

 :nces belong to a race distinct from the eastern bird which seems 

 o have its centre of migration in Ontario. {Macoun.) 



