66 Capt. Blakiston on the Birds of the 



vol. iv. p. 5) that this Shrike is a winter bird on the Saskatcha- 

 wan. Mr. Murray also notices it from Hudson's Bay, and Mr. 

 Ross on the Mackenzie. A figure of a female is given in the 

 ' Fauna Bor.-Ara.' 



45. COLLYRIO EXCUBITOROIDES. 



The White-rumped Shrike is only a summer visitor to the 

 north. Sir John Richardson considers that it does not go 

 further north than 54°, and that only in the western plains. 

 Mr. Ross, however, has found a Shrike in the Mackenzie River, 

 which he records, with a mark of doubt, as being C. ludovicianus. 

 The specimen given in the 'Fauna Bor. -Am.' was from Fort 

 Carlton, — the same locality as mine {' Ibis,' vol. iv. p. 5), which 

 was a female, — obtained, with a nest of seven eggs, by M. 

 Bourgeau. The nest was in a willow-bush, about five feet from 

 the ground, made of Artemisite and fine grass, which exactly 

 agrees with Mr. Drummond's observations. 



Collyrio elegans is given in the ' Fauna Bor.-Am.,' from a 

 specimen presented to the British Museum, from some part of 

 the fur-countries : no particulars are known. 



46. ViREO OLIVACEUS. 



Besides my specimen ('Ibis,' vol. iv. p. 5), the 'Fauna Bor.- 

 Am.' records one from the Lower Saskatchawan, and Mr. Ross 

 from the Mackenzie. 



47. ViREO GILVUS. 



My specimen of the Warbling Vireo killed on the Saskatcha- 

 wan (' Ibis,' vol. iv. p. 5) was the only one I knew of from the 

 interior, until I found that Mr. Ross had obtained it on the 

 Mackenzie. 



V. bartramii of Swainson, considered by Prof. Baird to be 

 virescens (Vieill.), is given in the 'Fauna Bor.-Am.,' but only 

 from the Columbia, and therefore cannot be included in this list. 



48. MiMUS CAROLiNENsis. (See ' Ibis,' vol. iv. p. 5.) 



I noticed that this bird difiered from Wilson's description in 

 the top of the head being dark brown, and the colour of the feet 

 (when fresh) purple-brown ; also in being difficult of approach 

 — in fact, a shy bird. A specimen is also given in the ' Fauna 

 Bor.-Am.,' from Fort Carlton, on the Saskatchawan. 



