BIRDS CORV1DAE — CYANOCITTA WOOBHOUSEII. 
585 
crescent, white streaked with blue ; behind it dull white ; the sides tinged with brown. Length, 12.25 ; wing, 5 ; tail, 6.15 ; 
tarsus, 1.55. (2841.) 
Hab. — 1'acific coast from Columbia river south. Not in the interior. 
The forehead and nasal feathers are uniform blue with the crown. The blue extends on the 
fore part of the back ; it is scarcely found on the rump, although the upper tail coverts are like 
the crown. There is no trace of blue on the belly, although a very faint wash is perceptible on 
the lower tail coverts. The blue streaks on and anterior to the pectoral collar are on the edges 
of the feathers, not the centres. 
I find considerable differences in size in different specimens of this bird. Thus, No. 8456, 
from San Francisco, measures nearly 14 inches; the wing, 5.25; the tail, 6.40. No. 8455, 
(male,) from Tejon Pass, on the contrary, measures 10.40 inches ; the wing, 4.65 ; the tail, 
5.50. The more southern specimens are smaller, and have the ashy brown of the back less 
glossed with blue. In most specimens the tail feathers are nearly truncate ; in 2841, however, 
they are quite acute. 
In young birds the head is generally like the back, with only a faint shade of blue. There 
is a brownish pectoral collar, but no streaks of blue. 
List of specimens. 
Catal. 
No. 
Sex. 
Locality. 
When collected. 
Whence obtained. 
Orig. 
No. 
Collected by — 
2641 
8458 
5542 
4225 
5902 
5903 
4949 
8457 
3716 
4565 
8455 
8461 
8462 
S 
Columbia river, O. T 
Oct. 11, 1834 
S. F. Baird 
J. K. Townsend.. 
T. A. Szabo 
$ 
E. Samuels- 
169 
Wint. 1853-4 
do 
A. J. Grayson. 
6 
Presidio, Cal 
July 27, 1853 
Aug. 24, 1857 
Monterey, Cal.. 
W. Huttou 
13 

A. Scbott 
s 
Fort Tejon, Cal 
Major Emory 
A. Schott 
Camp 149, Cal 
Mar. 16, 1854 
Lt. Whipple.... 
186 
CYANOCITTA WOODHOUSEII, Baird. 
Woodhouse's Jay. 
Sp. Ch. — Size and general appearance of C. californica. Graduation of tail one inch. Blue, with a very obscure ashy 
patch on the back. Sides of the head and neck and incomplete pectoral collar, blue ; throat streaked with the same. Breast 
and belly uniform brownish ash glossed with blue ; under tail coverts bright blue. Sides of head, including lores, black, glossed 
with blue below ; a streaked white superciliary line. Length, 11.50 ; wing, 5.35 ; tail, 6.10 ; tarsus, 1.60. 
Hab. — Central line of Rocky mountains to table lands of Mexico. 
This species has so close a relationship to C. californica that it may not seem proper to separate 
them, but the differences are readily perceptible in large series. All of the Rocky mountain 
July 1, 1858. 
74 b 
