( 551 ) 



CANADA FLYCATCHER. 



MUSCICAPA CANADENSIS, LiNN. 



PLATE cm. Vol. II. p. 17. 



Although this species reaches very far up the Missouri, where it 

 was seen by Dr Towns end, and extends into the Fur Countries to 

 Cumberland House, where Dr Richardson procured a specimen in 

 June, while I have traced it from Pennsylvania to Labrador, the 

 time and manner of its entering the United States in spring, as well as 

 its retrograde movements before the cold weather sets in, are yet unas- 

 certained. Among the thousands of Warblers which I met with on 

 my way to^the Texas, all of them progressing eastward, in April and 

 May, not a single individual of this species was seen by any of our 

 party. The eggs of this bird measure six and a half eighths in length, 

 and four-eighths and a quarter in breadth. 



PASSENGER PIGEON. 



COLUMBA MIGRATORIA- LiNN. 



PLATE LXII. Vol. I. p. 319. 



t 



This celebrated bird is mentioned by Dr Richardson as "annually 



reaching the 62d degree of latitude, in the warm central districts of the 

 Fur Countries, and attaining the 58th parallel on the coast of Hudson's 

 Bay in very fine summers only. Mr Hutchins mentions a flock which 

 visited York Factory and remained there two days, in 1775, as a very 

 remarkable occurrence. A few hordes of Indians that frequent the 

 low flooded tracts at the south end of Lake Winnipeg, subsist princi- 

 pally on the Pigeons, diu-ing a part of the summer, when the Sturgeon- 

 fishery is unproductive, and the Zizania aquatica has not yet ripened ; but 

 farther north, these birds are too few in number to furnish a material 

 article of diet." Dr Townsend states that this species is found on the 

 Rocky Mountains, but not on the Columbia River, where the Band- 

 tailed Pigeon, Columba fasciata of Say, is abundant. Whilst in the 



