86 American Wild Swan. 
Hooper. Bewick. American. 
Weight, 24 lbs. - 13%]lbs.- 2! lbs. 
Ft. In. Ft. In. Ft. In. 
Point of the beak tothe end ofthetail, 5 O - 3 9 - 4 6 
Be ec edge of forehead, 43 - 34 - . Ad 
cs ee eye, 5t - 4% - 5 
ay cs occiput, 74 - 64 - 74 
Width of the beak at the widest en) i e 14 
near the point, 
ec a middle, - - 13 
«with wings extended, 4 10. = 6... be eee 
Carpus to end of primaries, ots 1 Be a 
Length of middle toe, 64 - 5d - 6 
We intestines, 121° 05 6°10 2. = Or 
a4 ceca, Eis = 107 7= 103 
a: breast-bone, 84 - 62 - 74 
Depth of insertion of the trachea, 3 _ 5R - 64 
Length of bronchial tubes, 33 - 13 - 14 
Tail feathers in number, 20 18 20 
The youngest and smallest specimen I have met with, and the 
bones of which I now possess, had a very soft, reddish-white bill, with 
a brown point, and measured three inches from the point of the beak 
to the forehead,—six inches and one eighth to the occiput, and the 
usual position of the colored spot was covered to one inch and three 
eighths in front of the eye, with small yellow-orange feathers, which 
extended down to the gape. ‘The plumage, to the end of the tail and 
primaries, was of a deep leaden tint, and the feet and legs were of a 
light grey color. ‘This specimen measured six feet and eight inch- 
es between the points of the extended wings—four feet two inches 
from the point of the beak to the tail, and weighed eleven pounds. 
In the specimen above, whose dimensions I have compared immedi- 
ately with those of Mr. Yarrell, the yellow spot on the bill was five 
eighths of an inch in length, starting at the front corner of the eye and 
running towards the nostrils, and one fourth of an inch in breadth. 
In twenty specimens I have now examined of the American swan, I 
have never seen this spot more than one inch in length, and half an 
inch in breadth, and in many of them, an oblong mark of the size 
and shape of a little finger nail was alone found. In one instance, 
which weighed sixteen pounds, this spot was but one fourth of an 
inch square, and did not quite reach the eye. As the color and ex- 
tent of this spot, is assumed by Mr. Yarrell, as one of the principal 
