44 Capt. Blakiston on the Birds of tlic 



while Mr. Murray has recorded F. candicans (Gmelin) from the 

 same locality. On the Saskatchawan this bird, or rather one of 

 these birds, is rare, for I have only three or four recorded instances 

 of having seen any individuals of the Falcon family during winter. 

 It is known to the Indians and half-breeds of the interior as 

 " the Hawk that winters." Some specimens which have lately 

 come from Hudson^s Bay differ considerably, the largest measur- 

 ing 16^ inches in the wing. Mr. J. H. Gurney has decided that 

 they are of two species, F. islandicus and F. grcenlandicus. 



Falco sparverius. 



The American Sparrow-Hawk is identified as an inhabitant of 

 the interior by specimens from the forks of the Saskatchawan 

 recorded in the 'Fauna Boreali- Americana/ also one in the 

 museum of the Smithsonian Institution from between Hudson's 

 Bay and Lake Winipeg, and from the Mackenzie by Mr. Bernard 

 Ross. I found it throughout the prairie country, where, in the 

 spring, it comes in the van of the migratory birds, and whence it 

 continues its journey as far as the Arctic Circle. I observed an 

 individual at Red River Settlement on the 22nd of April, in 

 1859, the day previous to the arrival of the first Goose, while 

 the whole country was yet covered with snow, and the decided 

 spring thaw had not commenced. The year previous, I saw 

 what I took for the Sparrow-Hawk on the 15th of March, at 

 Fort Carlton, while Sir John Richardson observed it, the spring 

 which he spent there, on the 13th. 



3. ASTUR ATRICAPILLUS. 



The Goshawk is found to range throughout the interior from 

 Hudson^s Bay to the Rocky Mountains and Mackenzie River. 

 My specimens [' Ibis,' vol. iii. p. 316), collected as far west as the 

 Saskatchawan, do not differ from others from the most eastern 

 part of the continent. Nova Scotia. 



4. AcciPiTER cooPERi. Killed at Fort Carlton. (See ' Ibis,' 

 vol. iii. p. 317.) 



As Accipiter mexicanus has been found on the Upper Missouri, 

 I would draw attention to it as likely to be an inhabitant of the 

 Saskatchawan Plains, between which and the prairie bordering 

 the former river there is no natural line of demarcation. 



