FAMILY FURNARIIDAE lOI 



place or lodged in the angle of limbs, or among epiphytes, are pulled 

 apart and examined carefully for food. Stomachs that I have ex- 

 amined have held animal material. One collected on Cerro Pirre 

 contained one large spider and parts of a smaller one, an earwig with 

 jaws of two others, and other insect remains. 



The song, a loud repetition of a single phrase, resembles that of 

 the Bufif-throated Woodcreeper Xiphorhynchus guttatus, but is given 

 somewhat more slowly and less vociferously. The birds also utter 

 low chattering calls. Males were singing and in breeding condition 

 in February and March. Van Tyne (Auk, 1926. p. 546) described 

 a nest found on Barro Colorado Island, Canal Zone, as located in 

 a horizontal tunnel about 60 centimeters deep dug in a cut bank 

 of a small stream, about 120 centimeters above the water. The 

 actual nest "was composed almost entirely of a single kind of slender 

 leaf stalk about ten cm. in length. The nest was quite bulky with 

 a shallow cavity some ten cm. across and a thickened rim or ap- 

 proach on the side toward the entrance hole." The nest held two 

 half -grown young which the parents were feeding on small lizards 

 (identified in modern terminology as Anolis limifrons limifrons). 

 Van Tyne noted that a nest reported by L. L. Jewel, found at Gatun 

 in 1911 (see Stone, Proc. Acad. Nat. Sci. Philadelphia, vol. 70, 1918. 

 p. 262) made of twigs and dead leaves, Hned with grass, and placed 

 in the fork of a tree, was evidently wrongly identified. All available 

 records describe nests of this species as concealed in earthen 

 tunnels. The egg measurements of ".83X.62 in." (about 21 X 15.7 

 mm) are too small for this species. 



THRIPADECTES RUFOBRUNNEUS (Lawrence): Streak-breasted 

 Leaf -gleaner, Trepapalo Rayado 



Philydor rufobrunneus Lawrence, Ann. Lye. Nat. Hist. New York, vol. 8, 1865, 

 p. 127. (San Jose, Costa Rica.) 



Medium size, with strong, heavy body ; breast strongly streaked 

 with cinnamon-bufT ; bill large. 



Description. — Tip of bill strongly uncinate. Adult (sexes alike), 

 crown and hindneck brownish gray, with the feathers edged and 

 tipped with dull black ; back, scapulars, and wings somewhat reddish 

 brown, with the wing coverts more rufescent ; rump, upper tail 

 coverts, and tail chestnut ; side of head dusky, streaked with dull 

 buff ; lores grayish ; malar region, chin, throat, and adjacent sides 

 of neck ochraceous, basally dark, edged lightly with this color pro- 

 ducing a squamate appearance; rest of underparts tawny-olive, with 



