278 
F. STANLEir. F. HYEMALIS. 
“ Before steam navigation commenced on our western 
rivers, these eagles were extremely abundant there, 
particularly in the lower parts of the Ohio, the Missis- 
sippi, and the adjoining streams. I have seen hundreds 
going down from the mouth of the Ohio to New 
Orleans, when it was not at all difficult to shoot them. 
Now, however, their number is considerably diminished, 
the game on which they were in the habit of feeding, 
having been forced to seek refuge from the persecution 
of man farther in the wilderness. Many, however, are 
still observed on these rivers, particularly along the 
shores of the Mississippi.” 
6. FALCO STANLEII . — THE STANLEY HAWK. 
AUDUBON, PLATE LXXI. 
*This is a new species, named in honour of Lord 
Stanley, president of the Linnsean Society. 
7 . FALCO HYEMALIS — THE WINTER HAWK. 
AUDUBON, PLATE XXXVI. MALE AND FEMALE. 
Audubon, as usual, gives an admirable portrait of 
this species ; and this was the more necessary, seeing 
that Wilson’s figure is bad. The following observations 
on the physiognomy of birds , occur in his account of 
the winter hawk : — 
“ Every species of bird is possessed of a certain, not 
always definable, cast of countenance, peculiar to itself. 
Although it undergoes changes necessary for marking 
the passions of the individual, its joy, its anger, its terror, 
or despondency, still it remains the same specific look . 
Hawks are perhaps more characteristically marked in 
this manner than birds of any other genus, being by 
nature intended for deeds of daring enterprise, and 
requiring a greater perfection of sight to enable them 
to distinguish their prey at great distances. To most 
persons the family look of particular species does not 
