BIEDS OF NORTH AND MIDDLE AMERICA. 815 



where often intermixed with streaks of the same color; secondaries 

 with the spots arranged in four or five transverse series, the outer 

 webs of primaries with similar spots, which become larger on longer 

 quills; tail crossed by five or six narrow, interrupted bands of pale 

 dull buffy, usually suffused with deeper buff or cinnamon-buff, and 

 narrowly tipped with pale buff or buffy white; a more or less distinct, 

 sometimes rather broad, superciliary stripe of dull brownish white or 

 pale brownish buff, the lores and suborbital region the same color but 

 usually stained or suffused with pale brown, the former with shafts of 

 the feathers black; auricular region brown (more or less dark), indis- 

 tinctly streaked with paler or with dull brownish buffy; chin, malar 

 region, and subauricular region immaculate dull white or buffy white, 

 this white area extending upward at posterior end behind lower half. 

 Of more, of auricular region; throat buff, barred, more or less, with 

 dark brown, the bars usually most developed (sometimes coalesced) 

 on posterior portion, fonning a more or less distinct transverse band, 

 which on each side is continued upward behind the post-auricular 

 whitish area; foreneck and upper median portion of chest immaculate 

 buft'y white; rest of under parts pale buff and dull buffy white, deeper 

 buff, and immaculate, on femoral plumes and thighs (the feathering 

 of tarsi, the anal region, median portion of lower abdomen, and the 

 under taU-coverts likewise immaculate), elsewhere ■ broadly barred 

 with brown, the brown predominating on chest or upper breast 

 (especially laterally), where the buff is often in form of relatively 

 small, roundish, or sometimes even longitudinal, spots; <^ axillars 

 and under wing-coverts immaculate clear buff, the under primary 

 coverts broadly and abruptly tipped with dusky; inner webs of 

 remiges immaculate buff pioximally, banded with buff and grayish 

 brown distally; bill dull light grayish or yellowish; iris clear lemon 

 yellow; toes and naked part of tarsi duU grayish or horn color (in 

 dried sldns). 



Young. — Remiges and rectrices (if developed) as in adults; pileum, 

 hindneck, and back mostly plain light grayish brown to buffy brown; 

 wing-coverts mostly light buff; under parts and upper tail-coverts 

 immaculate buff, the sides of chest (sometimes whole upper chest) 

 shaded with brown; band across throat uniform brown. 



Adult w^Ze.— Length (skins), 200-245 (224); wmg, 164.5-178 

 (172.3); tail, 74.5-86 (81.6); culmen, from cere, 13-15 (14.2); tarsus, 

 41.5-48.5 (45.3); middle toe, 19-22 (20.3).^ 



o There is as much individual variation in the coloration of the under parts as in 

 that of the upper surface; sometimes all the bands are deep brown^ but not infre- 

 quently they are more rufescent, especially on the sides and flanks. 



^ Twenty-six specimens. 



