152. CONSERVATION OF CANADIAN WILD LIFE 
Columbia. Its peculiar habit of nesting in hollow trees and 
stumps above ground is well known. 
Redhead.—This species resembles somewhat its near rela- 
tive, the canvas-back duck. It is a large duck and favoured 
by sportsmen. In the Maritime Provinces it is a rare 
migrant, but more abundant in Ontario, where it breeds in 
certain of the marshes. It breeds commonly throughout the 
Prairie Provinces, where it frequents the abundant sloughs. 
Canvas-back Duck.—In the opinion of the epicures this 
is the king of the game-ducks. It is rare in the Maritime 
Provinces, but it is a more common migrant in Quebec and 
in Ontario. Its chief breeding-grounds are in the Prairie 
Provinces and the Northwest Territories. It also breeds in 
central British Columbia and winters on Okanagan Lake 
and around the mouth of the Fraser River and Victoria. 
Scaup or Bluebill.—This swift-flying duck offers excellent 
shooting to the sportsmen, and migrates southward later 
than many of the other ducks. It breeds throughout 
northwestern Canada and east of the Coast Mountains in 
British Columbia. It may be found in the winter in south- 
ern British Columbia and on the Pacific coast. 
Golden-eye or Whistler.—The latter name of this species is 
due to the whistling sound made by its wings in flight. 
Like the wood-duck, it nests in trees and stumps. It is a 
migrant in Ontario, Quebec, and the Maritime Provinces. 
Its chief breeding-places are the wooded regions of Mani- 
toba, Saskatchewan, and Alberta, particularly along the 
lower portions of the Saskatchewan, Nelson, and Churchill 
Rivers. It also breeds abundantly along the Athabaska 
and Slave Rivers. 
Eider-Duck.—The sea is the natural home of these large 
ducks, that do not come within the category of game-birds. 
There are a number of species which make their home in 
the Arctic and sub-Arctic regions of Canada. On the Atlan- 
tic coast, the northern and American eider are the chief 
