146 Capt. Blakiston on the Birds of the 



a common bird throughout the interior, where it is known as 

 the " Stock-Duck." Mr. Ross notes it on the Mackenzie, com- 

 mon to the Arctic coast. 



Anas obscura. 



The Dusky Duck belongs especially to the eastern seaboard 

 of North America ; but I have received a specimen, and seen 

 others, from York Factory, on Hudson^s Bay, which is the first 

 notice of it, I believe, from that locality. 



107. Dafila acuta. 



The Pintail inhabits the Saskatchawan ('Ibis,' vol. iv. p. 9) 

 and Red River to Hudson's Bay. It is also given on the Mac- 

 kenzie by Mr. Bernard Ross. A male specimen, which has 

 lately come from Hudson's Bay, has the whole of its white neck, 

 breast, and belly, as well as the fore part of the face and head, 

 strongly tinged with rust-colour, just as if it had inhabited 

 water holding iron in solution. Now this, in the Swans, has 

 been taken as a sign of youth ; but I am joined by others in con- 

 sidering the case open to doubt. In Snow-Geese this rustiness 

 is common ; and it is very usual to find it on the white fronts of 

 the Laughing Goose, even in very adult birds. 



108. Nettion carolinense. 



Specimens from the Saskatchawan ('Ibis,' vol. iv. p. 9) and 

 Hudson's Bay. Common also on the Mackenzie to the Arctic 

 Circle. 



109. QuERQUEDULA DiscoRS. (See ' Ibis,' vol. iv. p. 9.) 

 Specimens from the Saskatchawan ('Fauna Bor.-Am.') and 



from Slave Lake (Bernard Ross). 



110. Spatula clypeata. 



Specimens from the Saskatchawan (' Ibis,' vol. iv. p. 9) and 

 Hudson's Bay; also from Great Bear Lake ('Fauna Bor.-Am.') 

 and the Arctic Circle, on the Mackenzie (Bernard Ross). 



Chaulelasmus streperus. 



The Gadwall was seen and examined on the Saskatchawan by 

 myself; and a specimen is recorded thence in the 'Fauna Bor.- 

 Am.' I have, moreover, seen a specimen from Hudson's Bay. 



