BIRDS OF NOETH AND MIDDLE AMERICA. 639 



THRYOPHILUS MODESTUS MODESTUS (Cabanis). 

 CABAinS' WREN. 



Adults in spring and summer. — Pileum and hindneck plain daru 

 brownish gray or grajnsh brown (between darli mouse gray and darlv 

 hair brown); back and scapular plain olive-brown, passing into russet- 

 brown on rump and iipper tail-coverts; tail russet or cinnamon-brown, 

 more or less distinctly, and more or less broadly" barred with dusky; 

 wings similar in color to back and scapulars, the remiges (at least the 

 secondaries) indistinctly barred with dusky (the bars sometimes obso- 

 lete); a rather narrow but very distinct superciliary stripe of white; a 

 narrow postocular stripe of dusky brownish gray, occupjdng upper 

 portion of auricular region; a loral streak of dusky gray; suborbital 

 region and auricular region (except upper portion) dull white, the 

 latter usually narrowty streaked (more or less distinctly) with grayish 

 dusky; malar region, chin, throat, chest, breast, and upper abdomen 

 white; sides of chest more or less strongly washed with brownish gra}' 

 or grayish brown, this passing posteriorly into buffy cinnamon on 

 sides, flanks, and under tail-coverts, the latter without bars or other 

 markings; abdomen usually more or less tinged with bufl; maxilla 

 duskjr horn color or blackish, with paler tomia; mandible pale grayish 

 in dried skins, bluish gray in life; iris chestnut,* hazel,* or chocolate; '^ 

 legs and feet bluish slate, with soles of toes yellow* in life, dusky horn 

 color in dried skins. 



Adults in autumn and winter. — Similar to the spring and summer 

 plumage, but pileum and hindneck browner, sometimes almost concolor 

 with back. 



Young. — Similar in coloration to adults, but brown of upper parts 

 slightly duller, fulvous of flanks and under tail-coverts paler and 

 duller, white of under parts duller, and white superciliary and dusky 

 postocular stripes less distinct; iris slate-gray. 



Adult 7WfflZe.— Length (skins), 129-145 (13.5); wing, 58-61 (59.6); 

 tail, 52-56 (53.6); exposed culmen, 16.5-18 (16.7); tarsus, 23.6-24 

 (23.8); middle toe, 16. <« 



Adult female.— hength (skins), 114r-126 (122.6); wing, 61.5-58 

 (66.3); tail, 48-52 (50.4); exposed culmen, 14.5-16 (16.4); tarsus, 

 22-23.6 (22.6); middle toe, 14-16 (14.3).^ 



« There is a great amount of individual variation in the distinctness of the barring 

 on the tail, as well as in the relative width of the dusky bars, which are sometimes 

 nearly obsolete on the middle rectrices. i 



* Cherrie, manuscript. 



" Zeledon, manuscript. 



d Nine specimens, from Costa Rica. 



« Eight specimens, from Costa Rica. 



