580 
U. S. P. E. K. EXP. AND SURVEYS-ZOOLOGY-GENERAL REPORT. 
Comparative measurements of species. 
Catal. No. 
Species. 
Locality. 
fcl) 
CO 
ca 
X 
<v 
m 
Length. 
Stretch of 
wings. 
Wing. 
S3 
Eh 
Tarsus. 
Middle toe. 
Its claw 
alone. 
Hind toe 
and claw. 
Hind claw 
alone. 
Bill above. 
Along gape. 
Specimen 
measured. 
1407 
o 
10.12 
5 02 
5.22 
1.22 
1.04 
0.34 
0.80 
0.40 
1.01 
1.12 
do 
V 
11.00 
16.00 
5.17 
1423 
8 
11.02 
5.62 
5.84 
1.36 
1.16 
0.36 
0.86 
0.40 
1.18 
1.20 
12.25 
17.75 
5.66 
8376 
10.90 
5.34 
5.18 
1.60 
1.18 
0.36 
0.88 
0.43 
1.13 
1.18 
8372 
12.80 
5.71 
6.10 
1.82 
1.36 
0.44 
1.02 
0.50 
1.18 
1.40 
8486 
9 
11.30 
5.92 
5.90 
1.65 
1.16 
0.32 
0.90 
0.46 
1.10 
1.25 
8352 
11.70 
6.00 
6.10 
1.66 
1.28 
0.38 
0.96 
0.46 
1.24 
1.38 
do 
12.00 
17.00 
4419 
11.20 
5.46 
5.70 
1.58 
1.10 
0.38 
0.90 
0.47 
1.10 
1.26 
1919 
10.30 
4.43 
5.91 
1.44 
1.10 
0.30 
0.83 
0.34 
0.98 
1.10 
5903 
11.26 
4.75 
5.65 
1.52 
1.24 
0.40 
0.84 
0.44 
1.14 
1.20 
8455 
s 
10.44 
4.65 
5.64 
1.60 
1.20 
0.37 
0.90 
0.41 
1.10 
1.22 
9345 
o 
10.70 
4 82 
5.54 
1.47 
1.16 
0.33 
0.72 
0.30 
1.10 
1.25 
Skin *. 
8465 
V 
11.10 
5.31 
5.96 
1.60 
1.12 
0.34 
0.80 
0.38 
0.94 
1.08 
8484 
11.70 
5.20 
6.08 
1.64 
1.16 
0.34 
0.77 
0.40 
1.10 
1.21 
9095 
s 
12.80 
6.54 
6.54 
1.70 
1.28 
0.41 
0.94 
0.44 
1.12 
1.32 
8469 
o 8 
12.10 
6.33 
6.28 
1.64 
1.30 
0.36 
0.90 
0.44 
1.10 
1.30 
13.00 
19.00 
6.50 
4112 
10.70 
5.82 
5.43 
1.22 
0.43 
0.94 
0.47 
1.15 
1.33 
Skin. 
O 
11.50 
18.00 
6 00 
9096 
8 
13.10 
6.52 
6.94 
1.59 
1.27 
0.40 
1.00 
0.48 
1.10 
1.33 
Skin. 
8452 
Perisoreus canadensis.. 
Sangre Cristo Pass- 
10.9U 
5.78 
5.94 
1.32 
0.98 
0.34 
0.74 
0.40 
0.87 
0.94 
Skin. 
4052 
10.50 
4 71 
5.62 
1.60 
1.12 
0.36 
0.89 
0.41 
1.06 
1.16 
.do. 
O 
11.00 
14.25 
4.75 
9094 
10.90 
4.58 
5.12 
1.48 
1.12 
0.35 
0.41 
1.04 
1.16 
Ski. 
* Mounted. 
CYANUEUS CRISTATUS, Swainson. 
Blue Jay. 
Corvus cristatus, Linn. Syst. Nat. I, 10th ed. 1758, 106 ; 12th ed. 1766, 157.— Gmelin, Syst. Nat. I, 1788,369.— 
Wilson, Am. Orn. I, 1808, 2 ; pi. i. f. 1. —Bon. Obs. Wilson, 1824, No. 41. —Doughty, Cab. 
N. H. II, 1832, 62 ; pi. vi.— Aud. Orn. Biog. II, 1834, 11 : V, 1839, 475 ; pi. 102. 
Garrulus cristatus, “Vieillot, Encyclop. 890.”— Ib. Diet. XI, 477.— Bon. Syn. 1828,58.—Sw. F. Bor. Am. II, 
1831, 293.— Vieillot, Galerie, I, 1824, 160 ; pi. cii.— Aud. Birds Am. IV, 110 ; pi. 231. 
Pica cristata, Wagler, Syst. Av. 1827. Pica, No. 8. 
Cyanurus cristatus, Swainson, F. Bor. Am. II, 1831, App. 495. 
Cyanncorax cristatus, Bon. List, 1838. 
Cyanocilla cristata, Strickland, Ann. Mag. N. H. 1845, 261.— Cabanis, Mus. Hein. 1851,221. 
Cyanogarrulus cristatus. Bon. Consp. 1850, 376. 
Sp. Cii. —Crest about one-third longer than the bill. Tail much graduated. General color above light purplish blue ; wings 
and tail feathers ultramarine blue ; the secondaries and tertials, the greater wing coverts, and the exposed surface of the tail, 
sharply banded with black, and broadly tipped with white, except on the central tail feathers. Beneath white ; tinged with 
purplish blue on the throat, and with bluish brown on the sides. A black crescent on the fore part of the breast, the horns passing 
forward and connecting with a half collar on the back of the neck. A narrow frontal line and loral region black ; feathers on 
the base of the bill, blue like the crown. Female rather duller in color and a little smaller. Length, 12.25 ; w'ing, 5.65; tail, 
5.75. 
Hab. —Eastern North America, west to the Missouri. 
In addition to what has been already stated, there is a narrow black line behind the eye 
running into the cervical collar, which is overhung by the feathers of the crest ; the posterior 
concealed ones of these also black. The amount of white on the tail decreases from the exterior. 
