Hendrickson 1950 Syrallia albescens Nov. 2 5 km. N Villavicija, 1400 ft., Huila, Colombia, S.A. osified than most: single-layered Nov. 3 Traced and collected a calling male (R.C. Stebbins #4994) from a thorny, small-leaved shrub on high flat S. of camp. Nov. 4 Heard two individuals calling in thorn scrub about 1 & 1/2 Pm. N of camp, along road. Nov. 5 None heard during walk to (early A.M.) 0 from (mid-day) Villavicija via R.R. tracker Nov. 8 Villavicija, 1400 ft., Huila, Colombia, S.A. saw a pair, & heard the male singing in tree beside street leading to cemetery. Had no gun and was unable to collect what would have been our first and only female. Nov. 18 Apuy, 17 mi. S.E. Villavicencio, 1600 ft., Meta, Colombia, S.A. Heard the call a number of times at the edge of the army base, at about 11:00 A.M. Nov. 19 Villavicencio, 1600 ft., Meta, Colombia, S.A. Heard the call several times coming from dense, tall brush adjacent to the grounds of Instituto Roberto Franco. Nov. 2) Buenavista, 4000 ft., Meta, Colombia, S.A. Heard a male calling from scrub growth of cleared land.