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 ( f lbis/ 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. 
