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. 
Boss on the Mackenzie. A figure of a female is given in the 
‘ Fauna Bor.-Am.' 
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. Boss, 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 Artemisice 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. VlREO OLIVACEUS. h 
Besides my specimen (‘Ibis/ vol. iv. p. 5), the ‘ Fauna Bor.- 
Am.' records one from the Lower Saskatchawan, and Mr. Boss 
from the Mackenzie. 
47. VlREO GILVUS. 
My specimen of the Warbling Yireo 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. Boss 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 differed 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. 
