570 
U. S P. K. K. EXP. AND SUKVEYS ZOOLOGY— GENEKAL REPORT. 
not much like the eastern fish crow, appears to possess its peculiar habits. In all essential 
f eatures it is like the common Corvus americanus; so much so, indeed, that but 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 sby 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. 
Sex. 
Length. 
Stretch of wings. 
Wing. 
Tail. 
Tarsus. 
Middle toe. 
Its claw alone. 
Dill— 
Success 
ion of quills from longest. 
Specimen measured. 
Along curve. 
In straight line. 
Gape. 
Height at base. 
1. 
2. 
3. 
4. 
5. 
6. 
7. 
8. 
9811 
Puget Sound 
17.70 
11.32 
7.06 
2.01 
1.80 
0.50 
1.84 
1.80 
2.03 
0.82 
4 
5.3 
2 
7 
8 
9 
1 
Dry.... 
10310 
Fort Steilacoom.. 
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 
Dry.... 
10211 
do 
17.00 
11.00 
6.92 
2 06 
1.75 
0.52 
1.72 
1.58 
1.81 
4 
3.5 
6 
2 
7 
9 
1 
Dry.... 
io:toy 
do 
16.30 
10.92 
6.82 
2.00 
1.78 
0.53 
1.68 
1.60 
1.90 
0.66 
4 
3.5 
7 
9 
1 
Dry.... 
10315 
do 
"s 
10.90 
6.70 
2.10 
0.53 
1.78 
1.70 
1.98 
0.70 
4 
3.5 
6 
8 
7 
Dry.... 
16.50 
32.00 
Fresh- 
10306 
Shoalwater bay.. 
16.10 
10.72 
6.80 
2.12 
1.98 
0.56 
1.60 
1.56 
1.90 
0.64 
4 
3.5 
3 
7 
8 
9 
1 
Dry.... 
16.50 
33 00 
Fresh- 
10308 
Fort Steilacoom.. 
16.40 
10.90 
7.34 
1.96 
1.71 
0.52 
1.85 
1.09 
2.00 
0.66 
4 
3.5 
6 
7 
8 
9 
1 
Dry.... 
1030? 
do 
17.20 
10.70 
6.78 
1.96 
1.72 
0.51 
1.80 
1.69 
1.95 
0.70 
4 
3.5 
7 
9 
Dry.... 
List of specimens. 
Catal. 
No. 
Sex. 
Locality. 
When collected. 
Whence obtained 
Orig. 
No. 
Collected by — 
Length. 
Stretch 
of wings. 
9811 
10310 
10311 
10308 
10309 
10307 
10312 
10306 
Simiahmoo bay, W. T. 
Steilacoom, W. T 
Dec. 20, 1857 
Feb. — , 1856 
April 25, 185G 
March 
87 
230 
322 
241 
231 
324 
Dr. Suckley 
do... 
do 
do. 
February 
do 
do 
April 25, 1856 
do 
do 
3 
do 
324 
96 
16.50 
16.50 
32. 00 
33.00 
Shoalwater bay, W. T. 
Sept. 14,1854 
