WHISTLING SWAN. 
ISO. Olor columbianus. 58 inches. 
These large birds are snow white, with the exception of their 
bill and feet, which are black. The nostril is situated nearer 
the end of the bill than it is to the eye. It is distinguished 
from the next by the small yellow spot on either side of the 
bill near its base. 
Nest. —Are made of a large mass of rubbish, weeds, moss, 
grass, feathers and a few sticks, generally placed in marshy 
places near ponds or lakes. Three to six greenish or brownish 
buff eggs are laid (4.00 x 2.75). 
Range. —North America, more common in the east, breeding 
in Alaska and the Arctic islands, wintering from British 
Columbia to the central part of California. 
TRUMPETER SWAN. 
181. Olor buccinator. 65 inches. 
This magnificent bird, over five feet in length, with a 
spread of wing nearly ten feet, is found more in the interior 
than on the coast, its plumage is the same as above, except 
that the bill is entirely black and the nostril is located nearer 
the eye. Their nesting habits are the same as above, the eggs 
averaging a trifle larger. 
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