Interior of British North America. 67 



49. Hahporhynchus rufus. 



The 'Fauna Bor.-Am.' recoi-ds a specimen of the Brown Thrush 

 from Fort Carlton, besides my own {' Ibis/ vol. iv. p. 5). 



50. CiSTOTHORUS PALUSTRIS. 



The Long-billed Marsh Wren, besides being obtained by my- 

 self near Fort Carlton (/ Ibis,' vol. iv. p. 5), was procured by Mr. 

 Drummond on the eastern declivity of the Rocky Mountains, in 

 latitude 55°. The time of its arrival and departure in Pennsyl- 

 vania, mentioned by Wilson, and a few differences in colouring 

 from that given by the same author, led me to suppose at the 

 time that my specimen might be of a more northern and, perhaps, 

 western species. However, all the specimens here referred to have 

 passed through the hands of Dr. Sclater, than whom I suppose 

 there is not a better authority on American birds in this country. 



51. Troglodytes parkmanni. 



My specimen {' Ibis,' vol. iv. p. 5) has been referred to this 

 species. May not also that mentioned in the ' Fauna Bor.-Am.' as 

 T. aedon, from the Rocky Mountains, in lat. 55° N., be the same? 



With respect to other Wrens, it is not unlikely that T. hye- 

 malis may be found in the interior, though the ' Fauna Bor.- 

 Am.' does not mention it beyond Lake Huron. The Rock Wren 

 [Salpinctes ohsoletus) has been obtained on the high central 

 plains in American territory, as far north as Fort Union on 

 the Upper Missouri ; it may consequently be looked for on the 

 British prairies. 



52. SiTTA CANADENSIS. 



Besides inhabiting the Saskatchawan (' Ibis,' vol. iv. p. 5), the 

 Red-bellied Nuthatch is identified from Red River Settlement 

 by a specimen in the Smithsonian Institution, from Mr. Donald 

 Gunn. 



It is worthy of note that not one of the five foregoing birds 

 has been collected by Mr, Ross in the Mackenzie River district. 

 They probably do not go so far north. 



53. Parus septentrionalis. 



Four specimens collected by me (' Ibis,' vol. iv. p. 5), after 

 careful comparison, were pronounced to be of this long-tailed 



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