154 
Capt. Blakiston on the Birds of the 
and Mr. Bernard Ross records it at Mackenzie River. Mr. Murray 
has given Sterna nigra (Linn.) from Hudson’s Bay. 
"COLYMBUS TORQUATUS. 
Common throughout the interior in the summer season, but 
most frequently found on lakes. Specimens from Mackenzie 
River (Bernard Ross & ‘ Fauna Bor.-Am.’) and Hudson’s Bay 
(Murray). 
' CoLYMBUS ARCTICUS. 
The Black-throated Diver is given by Mr. Murray from 
Hudson’s Bay, and also recorded in the ‘ Fauna Bor.-Am.’ from 
thence ; I have also seen specimens. Mr. Bernard Ross mentions 
the variety pacifica as occurring sparingly on Mackenzie River. 
He also gives Colymbus adamsii , G. R. Gray, which he states 
occurs in numbers on Great Slave Lake. 
"Colymbus septentrionalis. 
Hudson’s Bay (‘ Fauna Bor.-Am.’). Mackenzie River (Ber¬ 
nard Ross). I have also seen specimens from Hudson’s Bay. 
Todiceps griseigena. 
Red River Settlement (Smithsonian Institution). Mackenzie 
River (‘Fauna Bor.-Am.’ & Bernard Ross). 
PODICEPS CRISTATUS. 
Saskatchawan River (‘ Fauna Bor.-Am.’). 
120. PODICEPS CORNUTUS. 
Specimens from Mackenzie River recorded by Mr. Bernard 
Ross and in the ‘ Fauna Bor.-Am.,’from between Hudson’s Bay 
and Lake Winipeg by Mr. Murray, a specimen in the Smith¬ 
sonian Institution, collected by Mr. Kennicott on the Red River 
of the North, and my own (‘Ibis,’ vol. iv. p. 10) from the Sas¬ 
katchawan Plains and Hudson’s Bay, show the Horned Grebe to 
be widely distributed in the interior. 
PODICEPS AURITUS. 
Mackenzie River (Bernard Ross). 
PoDILYMBUS PODICEPS. 
Mackenzie River (Bernard Ross & ‘Fauna Bor.-Am.’). 
Uria grylle. 
Mr. Murray records the Black Guillemot, with a slight pecu- 
