SPECIES 3. CORPUS COLUMBMNUS. 
CLARK’S CROW. 
[Plate XX. — Fig. 2.] 
Peale’s Museum, JSTo. 1371. 
This species resembles, a little, the Jackdaw of Europe ( Cor- 
vus monedula;) but is remarkable for its formidable claws, which 
approach to those of the Falco genus; and would seem to inti- 
mate, that its food consists of living animals, for whose destruc- 
tion these weapons must be necessary. In conversation with 
different individuals of Lewis and Clark’s party, I understood 
that this bird inhabits the shores of the Columbia, and the ad- 
jacent country,, in great numbers, frequenting the rivers and 
seashore, probably feeding on fish; and that it has all the grega- 
rious and noisy habits of the European species, several of the 
party supposing it to be the same. 
The figure in the plate was drawn with particular care, after 
a minute examination and measurement of the only preserved 
skin that was saved; and which is now deposited in Peale’s 
Museum. 
This bird measures thirteen inches in length; the wings, the 
two middle tail feathers, and the interior vanes of the next (ex- 
cept at the tip) are black, glossed with steel blue; all the second- 
aries, except the three next the body, are white for an inch at 
their extremities, forming a large spot of white on that part, 
when the wing is shut; the tail is rounded; yet the two middle 
feathers are somewhat shorter than those adjoining; all the rest 
are pure white, except as already described; the general colour 
of the head, neck, and body, above and below, is a light silky 
drab, darkening almost to a dove colour on the breast and belly; 
