1H87.] PROCEEDINGS OF UNITED STAtES NATIONAL MUSEUM. 149 



(lull asligniy, coarsely spotted with wliiic; fcinoral lejiiioii dull white, 

 with lar<;e, somewhat saj^itt ate, stripes of jirawsh-brown ; under tail- 

 coverts buliy-white or very pale bulf, marked with broad mesial, some- 

 what wedge-shaped, stripes of deep olive, changing- to plumbeous ou 

 longer feathers. Bill deep black ; legs and ieet deep horn-color (more 

 grayish in life f). Length (skin), 9.50 ; wing, 4.05; tail, 4.()(>; tarsus, 1.30. 



Adult female (No. 110504, Campos, Sonora; Lieut. IL 0. Benson, U. 

 S. A.): Very different in color from the male. Crest smaller than in 

 male, uniform dull black; foiehead,&c.,dull brownish grey (more brown- 

 ish posteriorly) streaked with black, the streaks growing much broader 

 and the groundcolor paler on occiput; sides of nape and sides of neck 

 dull whitish spotted with brownish bhick : chin, throat, and cheeks 

 white, speckled with black, each leather having a central guttate spot 

 of the latter and a broad margin of the former color; ear-coverts uni- 

 form deep hair-brown, producing a distinct sjiot ; back dull gray, mi. 

 nutely mottled or zigzagged with lighter and darker (but not barred), the 

 general color changing to a more olivaceous gray on lower ba(;k and 

 rump ; upper tail-coverts brownish gray, coarsely zigzagged with whitish, 

 the concealed portion of the feathers more uniform and more bluish 

 gray; tail ])laii!beous, l)ut upper surface minutely mottled with grayish 

 brown and whitish. Scapulars dark brown, mottled with paler, many of 

 the feathers broadly, but more or less irregularly margined with dull, l)uffv 

 ■whitish, producing a coaisely blotched appearance; teitials sin)ilar, but 

 light buffy edging to inner webs, broader and very sharply defined; 

 wings in general coarsely mottled, light giayish brown, dusky and ])a]e 

 einnamon-buffy, the latter forming irregular borders to the larger cov- 

 erts; primaries as iu the male (plain slate-gray Avith hoary edges); 

 chest light brownish gray (more decidedly brownish next to throat), 

 coarsely spotted with dull whitish, these spots growing gradually larger 

 posteriorly, uutil on lower breast and middle of belly the prevailing 

 color is dull white, narrowly barred with grayish brown ; sides and flanks 

 dull white, tinged with bully, and broadly striped with hair brown ; fem- 

 oral region more distinctly buffy, but marked with more pointed stripes; 

 lower tail coverts buffy whitish, marked with broa<l mesial stripes oi 

 hair-brown, changing to slate-gray on longer feathers. Bill black; feet 

 dark horn-color. Length (skin), 8.50 ; wing, 4.50 ; tail, .3.75 ; tarsus, 1.20; 

 middle toe, 1.10. 



Two other adult males are essentially like the type, but differ in some 

 details, as follows: 



No. 110501 has the crest of a much deeper color, the tint being cinna- 

 mon-buff; the crissum and umler tail-coverts are ])ale buff, with narrower 

 mesial streaks. 



No. 110503 has the crest rather paler than in the type, and the black 

 of the chin and throat is nearly uniform, owing to wearing away of the 

 white terminal marjrin. 



