- dd. Chest white medially, shading; into pale gray laterally; brown of back, etc., lighter, more buffy. (Eastern Panamá.)
aa. Pileum without any rufous (uniform dark brown); chest not rufous. (Young.)
- b. Chest brown.
- bb. Chest dull slate-grayish or olive-slaty.
SYNALLAXIS ERYTHROTHORAX Sclater.
RUFOUS-BREASTED SYNALLAXIS.
Adults (sexes alike). — Above plain sepia or bister brown, the pileum and hindneck usually somewhat duller (approaching grayish brown in worn plumage); tail more chestnut brown, the shafts of rectrices black; wings chestnut, passing into bro^vn on terminal portion of remiges and on tertials; sides of head and neck similar in color to pileum and hindneck; chin and upper throat blackish slate or slate-black, streaked (more or less broadly) with white, the lower throat uniform blackish slate or slate-black, or with feathers tipped with slate color; chest, upper breast, sides of breast, and under wing-coverts uniform chestnut-rufous or deep cinnamon-rufous, passing into light brown (nearly raw-umber) on flanks; abdomen and median portion of lower breast transversely mottled or barred with whitish and mouse gray, more or less suffused with olive; under tail-coverts similar in color to flanks but rather paler and grayer; bill black, the mandible sometimes brownish or horn colored basally; legs and feet dusky horn color (in dried skins).
Young. — Upper parts as in adults, but chestnut of wings broken by brown tips to middle and greater wing-coverts; chin and upper throat transversely mottled or barred with grayish white and dull slate color, the lower throat nearly uniform dull slate color; chest, upper breast, sides, flanks, and under tail-coverts light brown (between isabella color and raw umber), the abdomen and median portion of lower breast pale grayish transversely mottled or barred with brown; basal half or more of mandible light colored.
Adult male. — Length, (skins), 132-157 (146); wing, 53.5-61.5 (57); tail, 58-70.5 (65.7); culmen, 12.5-14.5 (13.8); tarsus, 19-21 (20.4); middle toe, 13.5-16 (14.9).[1]
- ↑ Eighteen specimens.
