LL Wolf 1963 Aimophila humeralis August 8 m.s. Puxtla, Puebla, Mexico. Foraging bird flies from perch 3-4 feet up in legume down to small shrubs and dead branches. Hops around there + down to ground. Saw foraging both in spots where grass/weds 6-15 inches tall + thick so bird hidden + under ligame canopy where bird could hop on bare ground almost without hitting any herbs. Here hopped along ground occasionally flicking at ground. Once reached up + pecked at plant leaf - probably for insect. Another actually fluttered up about 4 inches + pecked at a weed leaf. Then appeared to go to bare ground to eat catch. After foraging for 5+ minutes birds flew up to legume branch where much bill wiping + once preening. While I tried to watch one bird foraging other bird again sat in exposed perch 5-8 feet above ground facing me. Gave continuous, ~3 second-spaced, 'zip' notes. Both birds flew from elevated perches to a 20° from horizontal limb in legume. One landed slightly after other. Both turned 180° + began chattering. Wing flicking by both. One which apparently gave most of chatter, red.59+, which chattered after other quit also wing flicked [illegible]. Again birds facing almost parallel ↓↓ + bird giving more chatter was flicking inside wing harder than outside. So far have only seen two birds together. 0755: Then bird in distance giving introductory note to song. Repeated every 4-6 seconds. Have not heard full song for