CORVID.E — GARRULIN.E : JAYS AND PIES. 499 



as in woodhousei, but no hoary mi fcjrehead ; bill slender. Thus it is seen that each of the three 

 forms presents a varying emphasis of common characters. Adult ^ J : General color blue. 

 Scapulars and interscapulars gray, with little if any tinge of blue; rump and upper tail-coverts 

 bluish-gray, usually mixed with some white. Forehead and nasal tufts blue like crown ; a 

 sharp white superciliary stripe over and behind eye ; lores, eyelids, and auriculars blackish. 

 Under parts from breast soiled white, with little or no tinge of blue except on crissuni ; breast 

 appearing as if blue, overlaid with broad white stripes, which become continuous on tliroat and 

 chiu; the breast is really white, in streaks edged with blue, and with a surrounding of blue in 

 which the streaks are as if framed. Iris brown; bill and feet black. lieugth 12.00 or less; 

 wing 5.00; tail 5.50; bill 1.00; tarsus 1.50; middle toe and claw 1.25. In comparison with 

 ivoodhousei, differences are seen in the well-defined gray dorsal patch ; nearly white under- 

 jjarts witliout decidedly blue crissum ; broader and more continuously white gular streaks. The 

 general habits, nest, and eggs are the same. This species is common in the State for which it 

 is named, and there generally distributed, on botli sides of the main mountain range ; but it 

 extends S. into Lower California, N. through Oregon to the Columbia and thus to Wasliing- 

 ton, in the Pacific coast region, and E. into some parts of Nevada. 



A. c. hypoleu'ca. (Gr. vno, hupo, under, below, and "KevKos, leucos, white.) Xantus' Jay. 

 Said to be smaller than the last (though the dimensions as alleged do not bear this out), with 

 lai-ger bill and feet, paler blue back and whiter under parts. Lower California. RiDGW. Man. 

 1887, p. 356; Coues, Key, 4th ed. 1890, p. 901 ; A. O. U. List, 2d ed. 1895, No. 481 a. 

 A. c. obscu'ra. (Lat. obscura, fem. of obscurus, dark, obscure: applicable in a double sense 

 to the alleged distinctness of this local race.) San Pedro Jay. Belding's Jay. Differing 

 from A. californica in much darker colors and weaker feet. San Pedro range, L. Cala., up to 

 10,000 feet. Anthony, Pr. Cal. Acad. Sci. 2d ser. ii, Oct. 1889, p. 75; A. 0. U. List, 2d ed. 

 189.>, No. 481 b. A. floridana obscura Coues, Key, 4th ed. 1890, p. 901. 



(Subgenus Sieberocitta.) 



A. sieb'eri arizonae. (To Sieber. Of Arizona.) Arizona Jay. Belonging to a different 

 .section of the genus, distinguislied by having tail rather shorter tliau longer than wings, upper 

 parts uniform blue, no tliroat-streaks, and eggs plain. Adult ^ 9 : Above, light blue, purer 

 on head, wings, and tail than on back, where rather dull. Beneath, sordid bluish-gray, bluest 

 on breast, paler on throat, wliitening on belly, flanks, and crissum. Lores blackish ; orbits 

 and auriculars dark. No superciliary stripe, nor decided streaks on throat or breast. Bill nor- 

 mally black, sometimes irregularly patched with whitish. Feet black. Length about 18.00; 

 wing G.2.5-6.75 ; tail (5.00-0. .50, rounded, the lateral feathers graduated about 050: bill 1.25, 

 0.40 deep at base ; tarsus 1.G7 ; middle toe and claw 1.33. Young : Little if any blue except- 

 ing on wings and tail, being dull gray above ; below, much like the adult. Bill flesh-colored 

 on most of under mandible. Arizona and New Mexico, N. to about 35°, S. into Sonora and 

 Chihuahua. This Jay abounds in the t'notliills of the mountains of southern Arizona and 

 southwestern New Mexico, where it goes in troops. The nest is built in scrub-oaks at no great 

 height, rather flattish, sometimes quite flimsy, with small sticks and twigs as a basis, upon 

 which are woven rootlets and horse hairs; some nests measure 10.00 across outside, and 4.00 

 deep, with a .shallow cup 4..50 X 2.00. In some cases additional "cock-nests " are built, but 

 never used for eggs, as is also the case with various other birds, — the Long-billed Marsh Wren, 

 f.ir cxainiile. Eggs 3-7, usually 4 or 5, averaging 1.18 X 0.87, but ranging in length from 

 1.05 to L.T), laid in April and May. They are remarkable in this genus, indeed in the family, 

 for being whole-colored, of the jieculiar light greenish-blue tint commonly called " robin-blue," 

 entirely free from spots. The synonymy of this bird became much involved while authors were 

 groping their way to its identification. Waiving any question of Gnrrulus sordidus SwAiNS. 

 Phil. Mag. i, 1827, p. 437, Zool. 111. 2d ser. pi. 8G, it is now regarded as the northern form of 



