LLW014 1964 Aimophila suniichrosti August 18 4 mi. E. Tehuantepec, 100±ft, Oaxaca, Mexico 0630 - found ♂♀ up in 8 foot tree at edge of closed canopy vegetation. singing what sounds like solo version of chatter -- ♀?♂? 0632.5 - left perch + dropped to ground. I walked over + both flushed from ground into shrubs - 3-4 feet up on dead horizontal branches. both bill wiped thru or preened while ♀ departed to forage. Moved along in 75±% continuous herb layer mostly grass + a velvety leafy herb growing up to 2 foot tall. ♂♀ sang once loudly while preening. finished preening + worked to top of adjacent shrub (8 feet up) to dead top branch where began singing (0641). At first singing loud, chatter song, but soon switched to -- ♀'♂''♂ song. Gave two short chatter songs - each time when vehicle passed on road 75±yds. to N. 0647 - ♀ up into lower branches of shrub. moves from leaf chewy to leaf chewy. bittery leaves with head + breast causing water droplets to shower down. than onto same dead branch where earlier flushed + sat preening. 0651 - ♂ left perch. 0653 - ♂ flew to top of NEXT shrub 6N (5±yds) + sat on bare portion of limb. Gave single chatter song. Both then flew to small pile of dead Acacia branches 20±yds. to NW. ♂ chattered loudly, but didn't sound as if ♀ joined. ♂ to ground + forage to west. 0655 - up to top of 8 foot± shrub where sang chatter song. ♀ sat preening. 0700 - ♂ flew from sway perch down to 3½ feet from ♀ when gave solo chatter. ♀ continued preening, ♂ silent + dropped down to 1½ feet above ground.