134 GEOLOGICAL SURVEY OF CANADA. 
refer to a single nest, for the ordinary number is from three to six. 
The nest is usually upon a small island in some secluded lakelet, 
or on a rounded bank close to the border of a pond. The eggs are 
deposited in a depression made in a heap of rubbish gathered by the 
birds from the immediate vicinity of the nest, and is composed of 
grass, moss, and dead leaves, forming a bulky affair in many cases. 
On June 14th, 1880, a swan was seen flying from the side of a small 
pond on the marsh near St. Michael, and a close search finally re- 
vealed the nest. The eggs were completely hidden in loose moss, 
which covered the ground about the spot, and in which the bird 
had made a depression by plucking the moss and arranging it for 
that purpose. The site was so artfully chosen and prepared that I 
passed the spot in my search, and one of my native hunters coming 
close behind, called me back, and thrusting his stick into the moss 
exposed the eggs. (Nelson.) I have a clutch of four eggs taken on 
the mainland opposite Herschell island on June 15th, 1905 by Rev. 
C. E. Whittaker. The nest consisted of a pile of weeds with a cavity 
at the top lined with feathers and down. (Razne.) 
181. Trumpeter Swan. 
Olor buccinator (RICH.) WAGLER. 1832. 
Stragglers are occasionally seen on Lake St. Clair and on the north 
side of Lake Erie and doubtless on Lake Ontario, but by many 
observers this species is referred to the more common whistling 
swan. 
Occasionally seen passing over Manitoba, flying high in the spring. 
More plentiful in the autumn. Only a few specimens noted by 
Spreadborough at Indian Head, Sask., in the middle of April, 1892. 
Seen passing over Revelstoke, B.C., from 18th to 20th April, 1890. 
This is the most common swan in the interior of the Northwest 
Territories. 
It breeds as far south as lat. 61°, but principally within the Arctic 
circle and in its migrations generally precedes the geese by a few 
days. (Richardson.) Richardson describes a specimen killed on 
Hudson bay. Barnston speaks of the breeding of swans near East 
Main fort, on James bay, and of eggs being brought to him from a 
nest on the banks of a lake near Norway House. His remarks 
probably refer to this species, as it has a more southern breeding 
