in the Interior of British North America, 315 



physical features of this region in the following manner : — " Hud- 

 son's Bay " means the coast of that bay ; " between Hudson's Bay 

 and Lake Winipeg/' the densely wooded region to the east of 

 that lake ; " Saskatchewan Plains," the high prairie-plains be- 

 tween the north branch of that river and the international 

 boundary ; " Lower Saskatchewan/' the country bordering that 

 river below its forks ; and " Red River Settlement," the settle- 

 ment on the river of the same name which flows into the 

 south end of Lake Winipeg. 



The observations here do not extend beyond the western edge 

 of the Rocky Mountains ; whence to the Pacific a distinct fauna 

 and flora prevail, which cannot be included with the present. 

 Most of the specimens I have collected are in the Royal Artil- 

 lery Institution at Woolwich, where they can be inspected by any 

 ornithologist. The nomenclature adopted is that given in Pro- 

 fessor Baird's recent Report on the Birds of North America, un- 

 less the contrary is stated. 



Order ACCIPITRES. 



L Falco ANATUM. 2 No. 48. A female, from Saskatchewan 

 Plains, on Bow River, near Rocky Mountains, August 6th, 1858. 



Length 19 in., wing 14. Eye brown, feet yellow, bill blue 

 horn-colour, cere yellow. 



This species, although extending from Greenland to Cuba, 

 has not yet been found on the Pacific slope of North America ; 

 and Professor Baird, of the Smithsonian Institution, considers 

 that the locality of my specimen (longitude 115° W.) is the 

 most westerly yet ascribed to this bird. F. nigriceps takes its 

 place on the Pacific, but may probably be found in the district 

 of Mackenzie River in the far north, where the Rocky Mountains 

 do not appear to offer so great an impediment to the mingling 

 of the fauna and flora of the two sides of the continent as is the 

 ease to the southward. 



2. Falco columbarius. 6 No. 64. 2 No. 65. North branch 

 Saskatchewan River, April 6th, 1858. Male: length 11| in., 

 wing 7|, tail 5. Legs and feet yellow, claws black; bill horn- 

 colour, greenish towards the base. 



X (NT 



