328 BULLETIN 50, UNITKD STATES NATIONAL MUSEUM. 



tail-coverts usually more or less tinged with pale blue; bill, legs, and 

 feet black; iris brown. 



Young.— Pileuxn, hindneck, auricular and suborbital regions, sides 

 of chest, rump, and upper tail-coverts uniform mouse gray, the pileum 

 slightly more bluish gray; back, scapulars, and lesser wing-coverts 

 deep drab-gray; lores dusky; a broad postocular or supra-auricular 

 space, narrowly streaked with dusky gray; anterior portion of malar 

 region, chin, throat, median portion of chest and under parts generally 

 white, faintly tinged across upper breast and on anterior portion of 

 sides with very pale brownish gray; wings (except smaller coverts) 

 and tail as in adults. 



Adult maZe.— Length (skins), 283.9-315 (288.8); wing, 125.5-132 

 (129.3); tail, 137-147 (142.7); exposed culmen, 24.9-27.4 (26.4); depth 

 of bill at nostrils, 9.1-10.5 (9.6); tarsus, 40.4-45 (41.1); middle toe, 21.6- 



27 (23.1)." 



Adult female.— Length (skins), 254-295 (274.5); wing, 115.6-127 

 (121.7); tail, 124.5-137 (130.2); exposed culmen, 20.8-26 (24.4); depth 

 of bill at nostrils, 8.9-10.2 (9.6); tarsus, 37.6-46 (41); middle toe, 20.3- 

 23 (22.2). * 



Pacific coast district of United States (north of San Fernando, San 

 Gabriel, and San Bernardino mountains), north to southwestern Wash- 

 ington, east to, and including, eastern slope of Sierra Nevada and 

 Cascade ranges. 



GaiTulus califomicus Vigors, Zool. Voy. "Blossom," 1839, 21, pi. 5 (Monterey, 

 California).— Baikd, inStansbury'sKep. Gt. SaltLake, 1853, 333 (Monterey). 



Cyanoaitta calif omica Strickland, Ann. Nat. Hist., xv, 1845, 342. — Gambel, 

 Journ. Ac. Nat. Sci. Phila., 3d ser., i, 1847, 45.— Sclatee, Proc. Zool. Soc. 

 Lond., 1857, 127 (San Jos6 Valley, California); Cat. Am. Birds, 1862, 143 (San 

 Francisco). — Kennbrly, Eep. Pacific R. li. Surv., x, pt. vi, 1859, 32, part 

 (California).— Newberry, Rep. Pacific R. R. Surv., "vi, pt. iv, 1857, 85 (Sac- 

 ramento Valley, etc., California) . — Baied, Rep. Pacific R. R. Surv., ix, 1858, 



»Ten specimens. , 



6 Nine specimens. 



Specimens from Oregon {A. c. immanus Grinnell) compare in average measurements 

 with those from northern and central California as follows : 



In coloration the two series seem to be identical. 



