570 
U. S P. E. E, EXP. AND SUEVEYS-ZOOLOGY-GENEEAL EEPOET. 
not much like the eastern fish crow, appears to possess its peculiar habits. In all essential 
features it is like the common Corvus amtricanus; so much so, indeed, that hut for the slight dif¬ 
ference in size it would be difficult to tell skins of the two apart. According to Drs. Cooper and 
Suckley, they are maritime, feeding on the sea beach at low tide, and coming about the settle¬ 
ments with considerable familiarity, being much less shy and suspicious than the common crow. 
The note, too, is said to be a little different. 
The species is readily distinguished from the eastern fish crow by the larger size, the absence 
of green gloss on the belly ; the tarsi longer than the middle toe and claw instead of shorter, 
and the second quill being generally shorter than the sixth instead of longer. It is so much 
like the Corvus americanus as to be only distinguishable by its inferior size and habits. Indeed, 
it is almost a question whether it be more than a dwarfed race of the other species. 
Crows from California and one from Vancouver (10303) agree, by their larger size, with the 
eastern Corvus americanus , and may thus be distinguished from the C. caurinus. 
Detailed measurements. 
Catalogue number. 
Locality. 
* 
Ol 
m 
Length. 
Stretch of wings. 
Wing. 
Tail. 
Tarsus. 
Middle toe. 
Its claw alone. 
Bill— 
Succession of quills from longest. 
Specimen measured. 
Along curve. 
In straight line. 
Gape. 
Height at base. 
1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9811 
17.70 
11.32 
7.06 
2.01 
1.80 
0.50 
1.84 
1.80 
2.03 
0 82 
4 
5.3 
6 
2 
7 
8 
9 
1 
10310 
16.00 
11.33 
7.08 
2 13 
1.84 
0.50 
1.59 
1.53 
1.73 
4 
3 5 
6 
2 
7 
8 
9 
1 
10211 
17.00 
11.00 
6.92 
2 06 
1.75 
0.52 
1.72 
1.58 
1.81 
0.62 
4 
3 5 
6 
2 
7 
8 
9 
1 
10309 
16.30 
10.92 
6.82 
2.00 
1.78 
0.53 
1.68 
1 60 
1.90 
0.66 
4 
3 5 
6 
2 
7 
8 
9 
1 
10315 
3 
10.90 
6.70 
2.10 
1.88 
0.53 
1.78 
1.70 
1.98 
0.70 
4 
3.5 
6 
2 
7 
8 
9 
l 
do.. 
16.50 
32.00 
10306 
Slioalwater bay.. 
16.10 
10.72 
6.80 
2.12 
1.98 
0.56 
1.60 
1.56 
1.90 
0.64 
4 
3.5 
6 
2 
7 
8 
9 
1 
Dry.... 
do.. 
16.50 
33 00 
10308 
16.40 
10.90 
7.34 
1.96 
1.71 
0.52 
1.85 
1.69 
2.00 
0.66 
4 
3.5 
6 
2 
7 
8 
9 
1 
10307 
17.20 
10.70 
6.78 
1.96 
1.72 
0.51 
1.80 
1.69 
1.95 
0.70 
4 
3.5 
6 
2 
7 
8 
9 
l 
Dry.... 
List of specimens. 
Catal. 
No. 
Sex. 
Locality. 
When collected. 
Whence obtained 
Orig. 
No. 
Collected by— 
Length. 
Stretch 
of wings. 
9811 
Dec 20 1857 
87 
10310 
Feb — 1856 
Dr. Suckley.. 
230 
10311 
April 25, 1856 
_... do..- 
322 
10308 
March - ...... 
241 
10309 
February _ 
_ do 
231 
10307 
April 25, 1856 
_do_ . 
324 
10312 
s 
_do.._ 
._do_ 
.do. 
324 
16. 50 
32.00 
10306 
Shoalwater bay, W. T. 
Sept. 14,1854 
Dr Cooper_ 
96 
16. 50 
33. 00 
