314 Capt. Blakiston on Birds collected and observed 



was taken ; and from the same bird, which has been kindly sub- 

 mitted to my examination by Mr. T. J. Moore, the Curator of 

 this celebrated collection, I have drawn up the following short 

 characters, which, when taken in conjunction with Mr. WolPs 

 figure, will, I hope, be sufficient to render the species recognizable 

 without much difficulty. 



ACCIPITER PECTORALIS. 



Falco pectoralis, in Mus. Antverpiauo. 



Supra niger, dorsi et scapularium tectricumque plumis albo mar- 

 ginatis, pileo nigro immaculato : torque collari postico et 

 capitis lateribus rufis : remigibus obscure fuscis : cauda 

 nigra, albo quater fasciata : subtus albus, plaga rictali et 

 striga mediali gutturis nigris ; pectore rufo, albo variegato : 

 ventre toto albo nigroque transfasciato : rostro nigro, pedibus 

 flavicantibus : long, tota 17, alse 10*2, tarsi 2"3, rostri a 

 rictu I'l poll. Angl. et dec. 



Hab. (ut dicitur) in America meridionali. 



Mus. Antverp. et Derbiano. 



The two examples of this bird in the Derby Museum (No. 393 

 and 393, a) were purchased by the late Lord Derby from 

 Mr. Gould, in September 1841. They have no locality marked 

 upon them. The species is very remarkable as being so nearly 

 a miniature, as regards general appearance, of Spizaetus omatus, 

 although certainly a true Accipitrine. The wings reach to about 

 one-half of the length of the tail ; the third, fourth, and fifth 

 primaries are nearly equal and longest. 



XXXIV. — On Birds collected and observed in the Interior of 

 British North America. By Captain Blakiston, R.A. (Part I.) 



By the " Interior of British North America," I mean that portion 

 of the continent lying to the north-west of Canada which may 

 be said to be bounded by the western base of the Rocky Moun- 

 tains, the 49th parallel of north latitude, Canada, Hudson^sBay, 

 and the Arctic Sea, and which has hitherto usually gone by the 

 somewhat indefinite appellation of the " Hudson's Bay Company's 

 Territories " and the " Fur Countries." 



Rather than give localities which require some amount of 

 geographical knowledge to make out, I have referred to the great 



