ARIZONA JAY.
482. Aphelocoma sieberi arizonæ. 13 inches.
A common bird in Arizona and south into Mexico. The upper parts are a bluish gray, shading into a brownish gray on the head; under parts are a pale gray. They are a very sociable bird during the breeding season, and often several pairs will nest in the same clump of trees, usually placing their nests at low elevations.
Nest.—Is made similar to the preceding, but the four eggs are more of a bluish color, without markings (1.20 × .85).
ROCKY MOUNTAIN JAY.
484a. Perisoreus canadensis capitalis. 12 inches.
This is almost the counterpart of the Canada Jay of the east, with the exception of having more white on the head, and only a small space on the back of the neck. He is the same “old coon” as the eastern bird about camps, and is rightfully called “Camp Robber.” Their nesting habits are the same as above, but their eggs are drab, spotted and blotched with brown, of varying shades (1.15 × .80).
OREGON JAY.
485. Perisoreus obscurus. 11 inches.
Like the last in every way, but with a blacker head, forehead white.