372 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Sci. Phila., 1893, 45, 63 (Lac la Hache, Bonaparte, Vernon, Nelson, and 

 Field, int. British Columbia). — Richmond and Knowlton, Auk, xi, 1894, 

 304 (Montana, up to 9,000 ft.).— Bendire, Life Hist. N. Am. Birds, ii, 1895, 

 388.— Merrill, Auk, xiv, 1897, 356 (Fort Sherman, n. w. Idaho).— 

 Mitchell, Auk, xv, 1898, 309 (San Miguel Co., New Mexico, breeding 

 from 9,000 ft. to timber line).— Cary, Auk, xviii, 1901, 235 (Black Hills, 

 Wyoming, breeding). — Howe, Osprey, new ser., i, 1902, 104 (crit. ). — 

 Bailey (Florence M.), Handb. Birds W. U. S., 1902, 277. 



Plerisoreus] c\_anadensis'] capitalis Coues, Key N. Am. Birds, 2d ed., 1884, 425. 



Plerisoreus'} canadensis capitalis Ridgway, Man. N. Am. Birds, 1887, 360. 



Perisoreus capitalis Sharpe, Cat. .Birds Brit. Mus., iii, 1877, 106, pi. 5, fig. 1 

 (Colorado). 



PERISOREUS OBSCURUS OBSCURUS (Ridgway). 

 OREGON JAY. 



Similar in general appearance to I\ c. canadensis^ but smaller; 

 upper parts brownish instead of grayish, the feathers of back with 

 distinct whitish shaft-streaks, and under parts dull white instead of 

 grayish. 



Adults {sexes alihe). — Nasal tufts and forehead white, the latter more 

 or less tinged with smoky brown, and often with feathers of the pos- 

 terior portion tipped with sooty brown; rest of pileum dark sooty 

 brown, approaching sooty black; an indistinct whitish collar across 

 lower hindneck; back, scapulars, and rump deep hair brown, var^dng 

 to deep broccoli brow^n or almost sepia, the interscapulars with whitish 

 shaft-streaks; wings and tail deep drab-gray, the middle and greater 

 wing-coverts and tertials narrowly margined terminally with whitish, 

 the rectrices more broadly but indistinctly tipped with the same; loral, 

 orbital, auricular, and malar regions white or grayish white, usually 

 more or less tinged or mottled with brown; chin and throat white; 

 rest of under parts brownish white, the flanks tinged with grayish 

 brown; bill, legs, and feet black; iris brown. 



Young. — Entire pileum and hindneck dull sooty brown or grayish 

 sepia, the feathers narrowly and indistinctly margined with paler; no 

 whitish collar across lower hindneck; sides of head similar in color to 

 pileum, the auricular region w4th indistinct dull whitish shaft-streaks; 

 nasal tufts sepia brown; chin and anterior portion of malar region 

 dirty brownish white; throat dull grayish brown, intermixed with dull 

 grayish white; rest of under parts pale broccoli brown, some of the 

 feathers with indistinct paler shaft-streaks; wings, tail, back, etc., 

 essentially as in adults; bill partly light-colored (fleshy in life ?). 



Adult m«/^.— Length (skin), 245; wing, 13.5.5; tail, 128; exposed 

 culmen, 18; tarsus, 33.5; middle toe, 17. ** 



Adult female.— Ijength. (skins), 240.5-259 (244); wing, 129.5-137 

 (135); tail, 122-128.5 (126); exposed culmen, 17.5-19 (18); depth of bill 

 at base, 8.5-10 (9.5); tarsus, 32.5-33.5 (32.7); middle toe, 16.5-18 (17).* 



ff One specimen. ^ Six specimens. 



