CATALOGUE OF CANADIAN BIRDS. 59 



Falco rusticolus obsoletus. 



BLACK GYRFALCON. 



TURNER reports this species as breeding abundantly at Fort 

 Chimo, though rarely seen there in the winter. 



Falco peregrinus anatum. 



DUCK HAWK. 



This' species occurs throughout the entire Dominion, breed- 

 ing usually in the northern portions, though Dr. COUES found a 

 pair nesting near Milk River, and it has been observed in the 

 breeding season in New Brunswick. It is more common along 

 the ocean borders than in the interior. 



Falco peregrinus pealei. 



PEALE'S FALCON. 



This is reported as a rare bird on Vancouver Island and 

 northward. 



Falco columbarius. 



PIGEON HAWK. 



A common summer resident of Canada at large, breeding 

 usually from about the 45th parallel northward, though THOMP- 

 SON reports that in Western Manitoba it occurs as a fall migrant 

 only. It has been taken in New Brunswick in winter, but usually 

 winters in the south. 



Falco columbarius suckleyi. 



BLACK MERLIN. 



A summer resident of British Columbia, though found only 

 between the Cascade Mountains and the Rockies. 



